Home / 147,759,937.20-221,639,905.80-99,386,996.40

Finding the Fourth Proportional to 147,759,937.20, 221,639,905.80 and 99,386,996.40

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Solution

The fourth proportional to 147,759,937.20, 221,639,905.80 and 99,386,996.40 is: 149,080,494.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,759,937.20 : 221,639,905.80 = 99,386,996.40 : x
  2. Step 2: Convert to fraction form
    147,759,937.20/221,639,905.80 = 99,386,996.40/x
  3. Step 3: Cross multiply
    147,759,937.20x = 221,639,905.80 × 99,386,996.40
  4. Step 4: Simplify right side
    147,759,937.20x = 22,028,124,519,840,940
  5. Step 5: Solve for x
    x = 22,028,124,519,840,940/147,759,937.20
  6. Step 6: Final answer
    x = 149,080,494.60

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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.