Home / 732,885,736.32-1,011,389,087.16-398,359,045.71

Finding the Fourth Proportional to 732,885,736.32, 1,011,389,087.16 and 398,359,045.71

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Solution

The fourth proportional to 732,885,736.32, 1,011,389,087.16 and 398,359,045.71 is: 549,739,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    732,885,736.32 : 1,011,389,087.16 = 398,359,045.71 : x
  2. Step 2: Convert to fraction form
    732,885,736.32/1,011,389,087.16 = 398,359,045.71/x
  3. Step 3: Cross multiply
    732,885,736.32x = 1,011,389,087.16 × 398,359,045.71
  4. Step 4: Simplify right side
    732,885,736.32x = 402,895,991,602,565,568
  5. Step 5: Solve for x
    x = 402,895,991,602,565,568/732,885,736.32
  6. Step 6: Final answer
    x = 549,739,163.47

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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.