Home / 478,224,008.70-717,336,013.05-435,141,858.30

Finding the Fourth Proportional to 478,224,008.70, 717,336,013.05 and 435,141,858.30

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Solution

The fourth proportional to 478,224,008.70, 717,336,013.05 and 435,141,858.30 is: 652,712,787.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,224,008.70 : 717,336,013.05 = 435,141,858.30 : x
  2. Step 2: Convert to fraction form
    478,224,008.70/717,336,013.05 = 435,141,858.30/x
  3. Step 3: Cross multiply
    478,224,008.70x = 717,336,013.05 × 435,141,858.30
  4. Step 4: Simplify right side
    478,224,008.70x = 312,142,925,744,090,048
  5. Step 5: Solve for x
    x = 312,142,925,744,090,048/478,224,008.70
  6. Step 6: Final answer
    x = 652,712,787.45

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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.