Home / 156,845,319.46-216,445,344.52-86,279,410.71

Finding the Fourth Proportional to 156,845,319.46, 216,445,344.52 and 86,279,410.71

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Solution

The fourth proportional to 156,845,319.46, 216,445,344.52 and 86,279,410.71 is: 119,064,928.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,845,319.46 : 216,445,344.52 = 86,279,410.71 : x
  2. Step 2: Convert to fraction form
    156,845,319.46/216,445,344.52 = 86,279,410.71/x
  3. Step 3: Cross multiply
    156,845,319.46x = 216,445,344.52 × 86,279,410.71
  4. Step 4: Simplify right side
    156,845,319.46x = 18,674,776,776,108,528
  5. Step 5: Solve for x
    x = 18,674,776,776,108,528/156,845,319.46
  6. Step 6: Final answer
    x = 119,064,928.69

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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.