Home / 1,312,091,487-1,810,724,043.42-725,418,414.36

Finding the Fourth Proportional to 1,312,091,487, 1,810,724,043.42 and 725,418,414.36

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Solution

The fourth proportional to 1,312,091,487, 1,810,724,043.42 and 725,418,414.36 is: 1,001,098,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,091,487 : 1,810,724,043.42 = 725,418,414.36 : x
  2. Step 2: Convert to fraction form
    1,312,091,487/1,810,724,043.42 = 725,418,414.36/x
  3. Step 3: Cross multiply
    1,312,091,487x = 1,810,724,043.42 × 725,418,414.36
  4. Step 4: Simplify right side
    1,312,091,487x = 1,313,532,564,421,264,384
  5. Step 5: Solve for x
    x = 1,313,532,564,421,264,384/1,312,091,487
  6. Step 6: Final answer
    x = 1,001,098,305.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.