Home / 765,573,431.40-1,148,360,147.10-356,670,916.20

Finding the Fourth Proportional to 765,573,431.40, 1,148,360,147.10 and 356,670,916.20

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Solution

The fourth proportional to 765,573,431.40, 1,148,360,147.10 and 356,670,916.20 is: 535,006,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,573,431.40 : 1,148,360,147.10 = 356,670,916.20 : x
  2. Step 2: Convert to fraction form
    765,573,431.40/1,148,360,147.10 = 356,670,916.20/x
  3. Step 3: Cross multiply
    765,573,431.40x = 1,148,360,147.10 × 356,670,916.20
  4. Step 4: Simplify right side
    765,573,431.40x = 409,586,665,793,723,712
  5. Step 5: Solve for x
    x = 409,586,665,793,723,712/765,573,431.40
  6. Step 6: Final answer
    x = 535,006,374.30

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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.