Home / 130,651,844.80-180,298,115.04-71,913,254.08

Finding the Fourth Proportional to 130,651,844.80, 180,298,115.04 and 71,913,254.08

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Solution

The fourth proportional to 130,651,844.80, 180,298,115.04 and 71,913,254.08 is: 99,239,503.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,651,844.80 : 180,298,115.04 = 71,913,254.08 : x
  2. Step 2: Convert to fraction form
    130,651,844.80/180,298,115.04 = 71,913,254.08/x
  3. Step 3: Cross multiply
    130,651,844.80x = 180,298,115.04 × 71,913,254.08
  4. Step 4: Simplify right side
    130,651,844.80x = 12,965,824,157,016,588
  5. Step 5: Solve for x
    x = 12,965,824,157,016,588/130,651,844.80
  6. Step 6: Final answer
    x = 99,239,503.10

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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.