Home / 398,909,194.77-598,596,962.63-288,135,632.73

Finding the Fourth Proportional to 398,909,194.77, 598,596,962.63 and 288,135,632.73

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Solution

The fourth proportional to 398,909,194.77, 598,596,962.63 and 288,135,632.73 is: 432,371,870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,909,194.77 : 598,596,962.63 = 288,135,632.73 : x
  2. Step 2: Convert to fraction form
    398,909,194.77/598,596,962.63 = 288,135,632.73/x
  3. Step 3: Cross multiply
    398,909,194.77x = 598,596,962.63 × 288,135,632.73
  4. Step 4: Simplify right side
    398,909,194.77x = 172,477,114,580,890,016
  5. Step 5: Solve for x
    x = 172,477,114,580,890,016/398,909,194.77
  6. Step 6: Final answer
    x = 432,371,870.19

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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.