Home / 787,863,689.28-1,087,386,900.84-458,030,147.04

Finding the Fourth Proportional to 787,863,689.28, 1,087,386,900.84 and 458,030,147.04

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Solution

The fourth proportional to 787,863,689.28, 1,087,386,900.84 and 458,030,147.04 is: 632,160,091.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,863,689.28 : 1,087,386,900.84 = 458,030,147.04 : x
  2. Step 2: Convert to fraction form
    787,863,689.28/1,087,386,900.84 = 458,030,147.04/x
  3. Step 3: Cross multiply
    787,863,689.28x = 1,087,386,900.84 × 458,030,147.04
  4. Step 4: Simplify right side
    787,863,689.28x = 498,055,982,081,115,072
  5. Step 5: Solve for x
    x = 498,055,982,081,115,072/787,863,689.28
  6. Step 6: Final answer
    x = 632,160,091.72

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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.