Home / 129,931,343,241.19-179,281,545,244.73-74,978,468,680.73

Finding the Fourth Proportional to 129,931,343,241.19, 179,281,545,244.73 and 74,978,468,680.73

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Solution

The fourth proportional to 129,931,343,241.19, 179,281,545,244.73 and 74,978,468,680.73 is: 103,456,605,541.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,931,343,241.19 : 179,281,545,244.73 = 74,978,468,680.73 : x
  2. Step 2: Convert to fraction form
    129,931,343,241.19/179,281,545,244.73 = 74,978,468,680.73/x
  3. Step 3: Cross multiply
    129,931,343,241.19x = 179,281,545,244.73 × 74,978,468,680.73
  4. Step 4: Simplify right side
    129,931,343,241.19x = 13,442,255,725,164,866,043,904
  5. Step 5: Solve for x
    x = 13,442,255,725,164,866,043,904/129,931,343,241.19
  6. Step 6: Final answer
    x = 103,456,605,541.38

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Double scale
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1.5x scale

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.