Home / 1,212,787,445.40-1,819,181,168.10-1,059,732,437.40

Finding the Fourth Proportional to 1,212,787,445.40, 1,819,181,168.10 and 1,059,732,437.40

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Solution

The fourth proportional to 1,212,787,445.40, 1,819,181,168.10 and 1,059,732,437.40 is: 1,589,598,656.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,787,445.40 : 1,819,181,168.10 = 1,059,732,437.40 : x
  2. Step 2: Convert to fraction form
    1,212,787,445.40/1,819,181,168.10 = 1,059,732,437.40/x
  3. Step 3: Cross multiply
    1,212,787,445.40x = 1,819,181,168.10 × 1,059,732,437.40
  4. Step 4: Simplify right side
    1,212,787,445.40x = 1,927,845,293,342,791,936
  5. Step 5: Solve for x
    x = 1,927,845,293,342,791,936/1,212,787,445.40
  6. Step 6: Final answer
    x = 1,589,598,656.10

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Double scale
Find fourth proportional to 1,212,787,446.40, 1,819,181,169.60 and 1,059,732,438.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.