Home / 899,192,901.35-1,240,823,210.13-522,822,787.36

Finding the Fourth Proportional to 899,192,901.35, 1,240,823,210.13 and 522,822,787.36

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Solution

The fourth proportional to 899,192,901.35, 1,240,823,210.13 and 522,822,787.36 is: 721,458,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,192,901.35 : 1,240,823,210.13 = 522,822,787.36 : x
  2. Step 2: Convert to fraction form
    899,192,901.35/1,240,823,210.13 = 522,822,787.36/x
  3. Step 3: Cross multiply
    899,192,901.35x = 1,240,823,210.13 × 522,822,787.36
  4. Step 4: Simplify right side
    899,192,901.35x = 648,730,649,338,047,616
  5. Step 5: Solve for x
    x = 648,730,649,338,047,616/899,192,901.35
  6. Step 6: Final answer
    x = 721,458,819.75

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Double scale
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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.