Home / 288,459,908.56-398,076,059.28-156,300,870.16

Finding the Fourth Proportional to 288,459,908.56, 398,076,059.28 and 156,300,870.16

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Solution

The fourth proportional to 288,459,908.56, 398,076,059.28 and 156,300,870.16 is: 215,695,951.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,459,908.56 : 398,076,059.28 = 156,300,870.16 : x
  2. Step 2: Convert to fraction form
    288,459,908.56/398,076,059.28 = 156,300,870.16/x
  3. Step 3: Cross multiply
    288,459,908.56x = 398,076,059.28 × 156,300,870.16
  4. Step 4: Simplify right side
    288,459,908.56x = 62,219,634,455,327,736
  5. Step 5: Solve for x
    x = 62,219,634,455,327,736/288,459,908.56
  6. Step 6: Final answer
    x = 215,695,951.53

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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.