Home / 912,472,887.60-1,368,709,331.40-858,725,175.60

Finding the Fourth Proportional to 912,472,887.60, 1,368,709,331.40 and 858,725,175.60

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Solution

The fourth proportional to 912,472,887.60, 1,368,709,331.40 and 858,725,175.60 is: 1,288,087,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,472,887.60 : 1,368,709,331.40 = 858,725,175.60 : x
  2. Step 2: Convert to fraction form
    912,472,887.60/1,368,709,331.40 = 858,725,175.60/x
  3. Step 3: Cross multiply
    912,472,887.60x = 1,368,709,331.40 × 858,725,175.60
  4. Step 4: Simplify right side
    912,472,887.60x = 1,175,345,160,951,823,616
  5. Step 5: Solve for x
    x = 1,175,345,160,951,823,616/912,472,887.60
  6. Step 6: Final answer
    x = 1,288,087,763.40

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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.