Home / 1,218,447,331.60-1,827,636,117.36-345,046,634.32

Finding the Fourth Proportional to 1,218,447,331.60, 1,827,636,117.36 and 345,046,634.32

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Solution

The fourth proportional to 1,218,447,331.60, 1,827,636,117.36 and 345,046,634.32 is: 517,560,073.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,447,331.60 : 1,827,636,117.36 = 345,046,634.32 : x
  2. Step 2: Convert to fraction form
    1,218,447,331.60/1,827,636,117.36 = 345,046,634.32/x
  3. Step 3: Cross multiply
    1,218,447,331.60x = 1,827,636,117.36 × 345,046,634.32
  4. Step 4: Simplify right side
    1,218,447,331.60x = 630,619,691,056,740,480
  5. Step 5: Solve for x
    x = 630,619,691,056,740,480/1,218,447,331.60
  6. Step 6: Final answer
    x = 517,560,073.96

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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.