Home / 646,316,209.92-970,909,205.64-400,854,240.84

Finding the Fourth Proportional to 646,316,209.92, 970,909,205.64 and 400,854,240.84

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Solution

The fourth proportional to 646,316,209.92, 970,909,205.64 and 400,854,240.84 is: 602,171,300.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,316,209.92 : 970,909,205.64 = 400,854,240.84 : x
  2. Step 2: Convert to fraction form
    646,316,209.92/970,909,205.64 = 400,854,240.84/x
  3. Step 3: Cross multiply
    646,316,209.92x = 970,909,205.64 × 400,854,240.84
  4. Step 4: Simplify right side
    646,316,209.92x = 389,193,072,551,389,632
  5. Step 5: Solve for x
    x = 389,193,072,551,389,632/646,316,209.92
  6. Step 6: Final answer
    x = 602,171,300.33

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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.