Home / 7,838,640,119.20-11,757,960,178.80-7,657,241,591.20

Finding the Fourth Proportional to 7,838,640,119.20, 11,757,960,178.80 and 7,657,241,591.20

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Solution

The fourth proportional to 7,838,640,119.20, 11,757,960,178.80 and 7,657,241,591.20 is: 11,485,862,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,838,640,119.20 : 11,757,960,178.80 = 7,657,241,591.20 : x
  2. Step 2: Convert to fraction form
    7,838,640,119.20/11,757,960,178.80 = 7,657,241,591.20/x
  3. Step 3: Cross multiply
    7,838,640,119.20x = 11,757,960,178.80 × 7,657,241,591.20
  4. Step 4: Simplify right side
    7,838,640,119.20x = 90,033,541,708,780,732,416
  5. Step 5: Solve for x
    x = 90,033,541,708,780,732,416/7,838,640,119.20
  6. Step 6: Final answer
    x = 11,485,862,386.80

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1.5x scale

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.