Home / 83,178,612.40-124,776,256.20-28,584,007.60

Finding the Fourth Proportional to 83,178,612.40, 124,776,256.20 and 28,584,007.60

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Solution

The fourth proportional to 83,178,612.40, 124,776,256.20 and 28,584,007.60 is: 42,878,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,178,612.40 : 124,776,256.20 = 28,584,007.60 : x
  2. Step 2: Convert to fraction form
    83,178,612.40/124,776,256.20 = 28,584,007.60/x
  3. Step 3: Cross multiply
    83,178,612.40x = 124,776,256.20 × 28,584,007.60
  4. Step 4: Simplify right side
    83,178,612.40x = 3,566,605,455,520,347.50
  5. Step 5: Solve for x
    x = 3,566,605,455,520,347.50/83,178,612.40
  6. Step 6: Final answer
    x = 42,878,876.58

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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.