Home / 285,411,478.68-428,118,016.10-88,703,655.63

Finding the Fourth Proportional to 285,411,478.68, 428,118,016.10 and 88,703,655.63

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Solution

The fourth proportional to 285,411,478.68, 428,118,016.10 and 88,703,655.63 is: 133,055,731.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,411,478.68 : 428,118,016.10 = 88,703,655.63 : x
  2. Step 2: Convert to fraction form
    285,411,478.68/428,118,016.10 = 88,703,655.63/x
  3. Step 3: Cross multiply
    285,411,478.68x = 428,118,016.10 × 88,703,655.63
  4. Step 4: Simplify right side
    285,411,478.68x = 37,975,633,069,354,952
  5. Step 5: Solve for x
    x = 37,975,633,069,354,952/285,411,478.68
  6. Step 6: Final answer
    x = 133,055,731.48

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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.