Home / 287,838,127.90-431,730,422.85-80,595,296.14

Finding the Fourth Proportional to 287,838,127.90, 431,730,422.85 and 80,595,296.14

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Solution

The fourth proportional to 287,838,127.90, 431,730,422.85 and 80,595,296.14 is: 120,885,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,838,127.90 : 431,730,422.85 = 80,595,296.14 : x
  2. Step 2: Convert to fraction form
    287,838,127.90/431,730,422.85 = 80,595,296.14/x
  3. Step 3: Cross multiply
    287,838,127.90x = 431,730,422.85 × 80,595,296.14
  4. Step 4: Simplify right side
    287,838,127.90x = 34,795,441,282,243,176
  5. Step 5: Solve for x
    x = 34,795,441,282,243,176/287,838,127.90
  6. Step 6: Final answer
    x = 120,885,448.83

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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.