Home / 753,989,400.80-1,130,984,101.20-521,537,107.40

Finding the Fourth Proportional to 753,989,400.80, 1,130,984,101.20 and 521,537,107.40

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Solution

The fourth proportional to 753,989,400.80, 1,130,984,101.20 and 521,537,107.40 is: 782,305,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,989,400.80 : 1,130,984,101.20 = 521,537,107.40 : x
  2. Step 2: Convert to fraction form
    753,989,400.80/1,130,984,101.20 = 521,537,107.40/x
  3. Step 3: Cross multiply
    753,989,400.80x = 1,130,984,101.20 × 521,537,107.40
  4. Step 4: Simplify right side
    753,989,400.80x = 589,850,176,655,236,864
  5. Step 5: Solve for x
    x = 589,850,176,655,236,864/753,989,400.80
  6. Step 6: Final answer
    x = 782,305,661.10

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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.