Home / 288,459,934.29-398,076,095.43-156,300,896.16

Finding the Fourth Proportional to 288,459,934.29, 398,076,095.43 and 156,300,896.16

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Solution

The fourth proportional to 288,459,934.29, 398,076,095.43 and 156,300,896.16 is: 215,695,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,459,934.29 : 398,076,095.43 = 156,300,896.16 : x
  2. Step 2: Convert to fraction form
    288,459,934.29/398,076,095.43 = 156,300,896.16/x
  3. Step 3: Cross multiply
    288,459,934.29x = 398,076,095.43 × 156,300,896.16
  4. Step 4: Simplify right side
    288,459,934.29x = 62,219,650,455,582,680
  5. Step 5: Solve for x
    x = 62,219,650,455,582,680/288,459,934.29
  6. Step 6: Final answer
    x = 215,695,987.76

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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.