Home / 287,712,803.70-431,073,193.95-134,043,686.10

Finding the Fourth Proportional to 287,712,803.70, 431,073,193.95 and 134,043,686.10

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Solution

The fourth proportional to 287,712,803.70, 431,073,193.95 and 134,043,686.10 is: 200,834,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,712,803.70 : 431,073,193.95 = 134,043,686.10 : x
  2. Step 2: Convert to fraction form
    287,712,803.70/431,073,193.95 = 134,043,686.10/x
  3. Step 3: Cross multiply
    287,712,803.70x = 431,073,193.95 × 134,043,686.10
  4. Step 4: Simplify right side
    287,712,803.70x = 57,782,639,895,958,216
  5. Step 5: Solve for x
    x = 57,782,639,895,958,216/287,712,803.70
  6. Step 6: Final answer
    x = 200,834,440.29

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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.