Home / 139,967,701.20-209,951,551.80-99,153,032.40

Finding the Fourth Proportional to 139,967,701.20, 209,951,551.80 and 99,153,032.40

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Solution

The fourth proportional to 139,967,701.20, 209,951,551.80 and 99,153,032.40 is: 148,729,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,967,701.20 : 209,951,551.80 = 99,153,032.40 : x
  2. Step 2: Convert to fraction form
    139,967,701.20/209,951,551.80 = 99,153,032.40/x
  3. Step 3: Cross multiply
    139,967,701.20x = 209,951,551.80 × 99,153,032.40
  4. Step 4: Simplify right side
    139,967,701.20x = 20,817,333,018,055,680
  5. Step 5: Solve for x
    x = 20,817,333,018,055,680/139,967,701.20
  6. Step 6: Final answer
    x = 148,729,548.60

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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.