Home / 140,290,025.28-193,606,982.64-77,564,962.58

Finding the Fourth Proportional to 140,290,025.28, 193,606,982.64 and 77,564,962.58

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Solution

The fourth proportional to 140,290,025.28, 193,606,982.64 and 77,564,962.58 is: 107,043,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,290,025.28 : 193,606,982.64 = 77,564,962.58 : x
  2. Step 2: Convert to fraction form
    140,290,025.28/193,606,982.64 = 77,564,962.58/x
  3. Step 3: Cross multiply
    140,290,025.28x = 193,606,982.64 × 77,564,962.58
  4. Step 4: Simplify right side
    140,290,025.28x = 15,017,118,363,698,308
  5. Step 5: Solve for x
    x = 15,017,118,363,698,308/140,290,025.28
  6. Step 6: Final answer
    x = 107,043,379.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.