Home / 666,918,943.20-920,766,479.01-429,177,186.27

Finding the Fourth Proportional to 666,918,943.20, 920,766,479.01 and 429,177,186.27

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Solution

The fourth proportional to 666,918,943.20, 920,766,479.01 and 429,177,186.27 is: 592,533,726.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,918,943.20 : 920,766,479.01 = 429,177,186.27 : x
  2. Step 2: Convert to fraction form
    666,918,943.20/920,766,479.01 = 429,177,186.27/x
  3. Step 3: Cross multiply
    666,918,943.20x = 920,766,479.01 × 429,177,186.27
  4. Step 4: Simplify right side
    666,918,943.20x = 395,171,966,673,246,784
  5. Step 5: Solve for x
    x = 395,171,966,673,246,784/666,918,943.20
  6. Step 6: Final answer
    x = 592,533,726.48

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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.