Home / 98,490,905.40-147,736,358.10-90,554,719.80

Finding the Fourth Proportional to 98,490,905.40, 147,736,358.10 and 90,554,719.80

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Solution

The fourth proportional to 98,490,905.40, 147,736,358.10 and 90,554,719.80 is: 135,832,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,490,905.40 : 147,736,358.10 = 90,554,719.80 : x
  2. Step 2: Convert to fraction form
    98,490,905.40/147,736,358.10 = 90,554,719.80/x
  3. Step 3: Cross multiply
    98,490,905.40x = 147,736,358.10 × 90,554,719.80
  4. Step 4: Simplify right side
    98,490,905.40x = 13,378,224,512,017,960
  5. Step 5: Solve for x
    x = 13,378,224,512,017,960/98,490,905.40
  6. Step 6: Final answer
    x = 135,832,079.70

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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.