Home / 287,159,598.81-430,712,826.16-79,901,151.75

Finding the Fourth Proportional to 287,159,598.81, 430,712,826.16 and 79,901,151.75

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Solution

The fourth proportional to 287,159,598.81, 430,712,826.16 and 79,901,151.75 is: 119,844,334.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,159,598.81 : 430,712,826.16 = 79,901,151.75 : x
  2. Step 2: Convert to fraction form
    287,159,598.81/430,712,826.16 = 79,901,151.75/x
  3. Step 3: Cross multiply
    287,159,598.81x = 430,712,826.16 × 79,901,151.75
  4. Step 4: Simplify right side
    287,159,598.81x = 34,414,450,882,531,948
  5. Step 5: Solve for x
    x = 34,414,450,882,531,948/287,159,598.81
  6. Step 6: Final answer
    x = 119,844,334.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.