Home / 853,459,624.88-1,177,963,754.22-518,861,049.47

Finding the Fourth Proportional to 853,459,624.88, 1,177,963,754.22 and 518,861,049.47

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Solution

The fourth proportional to 853,459,624.88, 1,177,963,754.22 and 518,861,049.47 is: 716,143,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,459,624.88 : 1,177,963,754.22 = 518,861,049.47 : x
  2. Step 2: Convert to fraction form
    853,459,624.88/1,177,963,754.22 = 518,861,049.47/x
  3. Step 3: Cross multiply
    853,459,624.88x = 1,177,963,754.22 × 518,861,049.47
  4. Step 4: Simplify right side
    853,459,624.88x = 611,199,509,752,210,432
  5. Step 5: Solve for x
    x = 611,199,509,752,210,432/853,459,624.88
  6. Step 6: Final answer
    x = 716,143,437.76

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1.5x scale

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.