Home / 288,459,942.29-398,076,106.47-156,300,904.16

Finding the Fourth Proportional to 288,459,942.29, 398,076,106.47 and 156,300,904.16

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Solution

The fourth proportional to 288,459,942.29, 398,076,106.47 and 156,300,904.16 is: 215,695,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,459,942.29 : 398,076,106.47 = 156,300,904.16 : x
  2. Step 2: Convert to fraction form
    288,459,942.29/398,076,106.47 = 156,300,904.16/x
  3. Step 3: Cross multiply
    288,459,942.29x = 398,076,106.47 × 156,300,904.16
  4. Step 4: Simplify right side
    288,459,942.29x = 62,219,655,365,753,432
  5. Step 5: Solve for x
    x = 62,219,655,365,753,432/288,459,942.29
  6. Step 6: Final answer
    x = 215,695,998.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.