Home / 157,154,639.74-216,873,603.11-85,627,182.72

Finding the Fourth Proportional to 157,154,639.74, 216,873,603.11 and 85,627,182.72

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Solution

The fourth proportional to 157,154,639.74, 216,873,603.11 and 85,627,182.72 is: 118,165,621.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,154,639.74 : 216,873,603.11 = 85,627,182.72 : x
  2. Step 2: Convert to fraction form
    157,154,639.74/216,873,603.11 = 85,627,182.72/x
  3. Step 3: Cross multiply
    157,154,639.74x = 216,873,603.11 × 85,627,182.72
  4. Step 4: Simplify right side
    157,154,639.74x = 18,570,275,639,132,228
  5. Step 5: Solve for x
    x = 18,570,275,639,132,228/157,154,639.74
  6. Step 6: Final answer
    x = 118,165,621.26

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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.