Home / 86,830,287.28-119,820,428.24-47,671,845.76

Finding the Fourth Proportional to 86,830,287.28, 119,820,428.24 and 47,671,845.76

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Solution

The fourth proportional to 86,830,287.28, 119,820,428.24 and 47,671,845.76 is: 65,784,199.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,830,287.28 : 119,820,428.24 = 47,671,845.76 : x
  2. Step 2: Convert to fraction form
    86,830,287.28/119,820,428.24 = 47,671,845.76/x
  3. Step 3: Cross multiply
    86,830,287.28x = 119,820,428.24 × 47,671,845.76
  4. Step 4: Simplify right side
    86,830,287.28x = 5,712,060,973,954,428
  5. Step 5: Solve for x
    x = 5,712,060,973,954,428/86,830,287.28
  6. Step 6: Final answer
    x = 65,784,199.88

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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.