Home / 147,759,947.20-221,639,920.80-99,387,006.40

Finding the Fourth Proportional to 147,759,947.20, 221,639,920.80 and 99,387,006.40

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Solution

The fourth proportional to 147,759,947.20, 221,639,920.80 and 99,387,006.40 is: 149,080,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,759,947.20 : 221,639,920.80 = 99,387,006.40 : x
  2. Step 2: Convert to fraction form
    147,759,947.20/221,639,920.80 = 99,387,006.40/x
  3. Step 3: Cross multiply
    147,759,947.20x = 221,639,920.80 × 99,387,006.40
  4. Step 4: Simplify right side
    147,759,947.20x = 22,028,128,227,045,096
  5. Step 5: Solve for x
    x = 22,028,128,227,045,096/147,759,947.20
  6. Step 6: Final answer
    x = 149,080,509.60

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1.5x scale

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.