Home / 475,056,467.20-712,584,700.80-429,139,964.80

Finding the Fourth Proportional to 475,056,467.20, 712,584,700.80 and 429,139,964.80

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Solution

The fourth proportional to 475,056,467.20, 712,584,700.80 and 429,139,964.80 is: 643,709,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,056,467.20 : 712,584,700.80 = 429,139,964.80 : x
  2. Step 2: Convert to fraction form
    475,056,467.20/712,584,700.80 = 429,139,964.80/x
  3. Step 3: Cross multiply
    475,056,467.20x = 712,584,700.80 × 429,139,964.80
  4. Step 4: Simplify right side
    475,056,467.20x = 305,798,573,418,330,496
  5. Step 5: Solve for x
    x = 305,798,573,418,330,496/475,056,467.20
  6. Step 6: Final answer
    x = 643,709,947.20

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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.