Home / 514,987,353.12-710,660,922.39-291,984,040.74

Finding the Fourth Proportional to 514,987,353.12, 710,660,922.39 and 291,984,040.74

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Solution

The fourth proportional to 514,987,353.12, 710,660,922.39 and 291,984,040.74 is: 402,925,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,987,353.12 : 710,660,922.39 = 291,984,040.74 : x
  2. Step 2: Convert to fraction form
    514,987,353.12/710,660,922.39 = 291,984,040.74/x
  3. Step 3: Cross multiply
    514,987,353.12x = 710,660,922.39 × 291,984,040.74
  4. Step 4: Simplify right side
    514,987,353.12x = 207,501,647,715,447,744
  5. Step 5: Solve for x
    x = 207,501,647,715,447,744/514,987,353.12
  6. Step 6: Final answer
    x = 402,925,715.47

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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.