Home / 285,411,479.80-428,118,017.79-88,703,656.76

Finding the Fourth Proportional to 285,411,479.80, 428,118,017.79 and 88,703,656.76

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Solution

The fourth proportional to 285,411,479.80, 428,118,017.79 and 88,703,656.76 is: 133,055,733.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,411,479.80 : 428,118,017.79 = 88,703,656.76 : x
  2. Step 2: Convert to fraction form
    285,411,479.80/428,118,017.79 = 88,703,656.76/x
  3. Step 3: Cross multiply
    285,411,479.80x = 428,118,017.79 × 88,703,656.76
  4. Step 4: Simplify right side
    285,411,479.80x = 37,975,633,702,815,736
  5. Step 5: Solve for x
    x = 37,975,633,702,815,736/285,411,479.80
  6. Step 6: Final answer
    x = 133,055,733.18

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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.