Home / 1,120,516,800.40-1,680,775,200.60-344,161,215.55

Finding the Fourth Proportional to 1,120,516,800.40, 1,680,775,200.60 and 344,161,215.55

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Solution

The fourth proportional to 1,120,516,800.40, 1,680,775,200.60 and 344,161,215.55 is: 516,241,823.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,516,800.40 : 1,680,775,200.60 = 344,161,215.55 : x
  2. Step 2: Convert to fraction form
    1,120,516,800.40/1,680,775,200.60 = 344,161,215.55/x
  3. Step 3: Cross multiply
    1,120,516,800.40x = 1,680,775,200.60 × 344,161,215.55
  4. Step 4: Simplify right side
    1,120,516,800.40x = 578,457,636,104,791,040
  5. Step 5: Solve for x
    x = 578,457,636,104,791,040/1,120,516,800.40
  6. Step 6: Final answer
    x = 516,241,823.33

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Double scale
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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.