Home / 83,041,387.20-124,562,080.80-76,994,769.60

Finding the Fourth Proportional to 83,041,387.20, 124,562,080.80 and 76,994,769.60

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Solution

The fourth proportional to 83,041,387.20, 124,562,080.80 and 76,994,769.60 is: 115,492,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,041,387.20 : 124,562,080.80 = 76,994,769.60 : x
  2. Step 2: Convert to fraction form
    83,041,387.20/124,562,080.80 = 76,994,769.60/x
  3. Step 3: Cross multiply
    83,041,387.20x = 124,562,080.80 × 76,994,769.60
  4. Step 4: Simplify right side
    83,041,387.20x = 9,590,628,712,092,582
  5. Step 5: Solve for x
    x = 9,590,628,712,092,582/83,041,387.20
  6. Step 6: Final answer
    x = 115,492,154.40

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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.