Home / 475,056,468.70-712,584,703.05-429,139,966.30

Finding the Fourth Proportional to 475,056,468.70, 712,584,703.05 and 429,139,966.30

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Solution

The fourth proportional to 475,056,468.70, 712,584,703.05 and 429,139,966.30 is: 643,709,949.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,056,468.70 : 712,584,703.05 = 429,139,966.30 : x
  2. Step 2: Convert to fraction form
    475,056,468.70/712,584,703.05 = 429,139,966.30/x
  3. Step 3: Cross multiply
    475,056,468.70x = 712,584,703.05 × 429,139,966.30
  4. Step 4: Simplify right side
    475,056,468.70x = 305,798,575,452,772,480
  5. Step 5: Solve for x
    x = 305,798,575,452,772,480/475,056,468.70
  6. Step 6: Final answer
    x = 643,709,949.45

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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.