Home / 147,442,934.40-221,589,554.40-128,736,211.20

Finding the Fourth Proportional to 147,442,934.40, 221,589,554.40 and 128,736,211.20

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Solution

The fourth proportional to 147,442,934.40, 221,589,554.40 and 128,736,211.20 is: 193,475,528.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,442,934.40 : 221,589,554.40 = 128,736,211.20 : x
  2. Step 2: Convert to fraction form
    147,442,934.40/221,589,554.40 = 128,736,211.20/x
  3. Step 3: Cross multiply
    147,442,934.40x = 221,589,554.40 × 128,736,211.20
  4. Step 4: Simplify right side
    147,442,934.40x = 28,526,599,674,952,292
  5. Step 5: Solve for x
    x = 28,526,599,674,952,292/147,442,934.40
  6. Step 6: Final answer
    x = 193,475,528.62

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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.