Home / 161,758,010.40-242,637,015.60-70,785,031.20

Finding the Fourth Proportional to 161,758,010.40, 242,637,015.60 and 70,785,031.20

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Solution

The fourth proportional to 161,758,010.40, 242,637,015.60 and 70,785,031.20 is: 106,177,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,758,010.40 : 242,637,015.60 = 70,785,031.20 : x
  2. Step 2: Convert to fraction form
    161,758,010.40/242,637,015.60 = 70,785,031.20/x
  3. Step 3: Cross multiply
    161,758,010.40x = 242,637,015.60 × 70,785,031.20
  4. Step 4: Simplify right side
    161,758,010.40x = 17,175,068,719,520,888
  5. Step 5: Solve for x
    x = 17,175,068,719,520,888/161,758,010.40
  6. Step 6: Final answer
    x = 106,177,546.80

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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.