Home / 156,681,242.64-216,222,363.36-86,123,387.88

Finding the Fourth Proportional to 156,681,242.64, 216,222,363.36 and 86,123,387.88

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Solution

The fourth proportional to 156,681,242.64, 216,222,363.36 and 86,123,387.88 is: 118,851,511.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,681,242.64 : 216,222,363.36 = 86,123,387.88 : x
  2. Step 2: Convert to fraction form
    156,681,242.64/216,222,363.36 = 86,123,387.88/x
  3. Step 3: Cross multiply
    156,681,242.64x = 216,222,363.36 × 86,123,387.88
  4. Step 4: Simplify right side
    156,681,242.64x = 18,621,802,467,983,580
  5. Step 5: Solve for x
    x = 18,621,802,467,983,580/156,681,242.64
  6. Step 6: Final answer
    x = 118,851,511.22

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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.