Home / 389,496,294-537,521,681.88-215,656,038

Finding the Fourth Proportional to 389,496,294, 537,521,681.88 and 215,656,038

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Solution

The fourth proportional to 389,496,294, 537,521,681.88 and 215,656,038 is: 297,614,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,496,294 : 537,521,681.88 = 215,656,038 : x
  2. Step 2: Convert to fraction form
    389,496,294/537,521,681.88 = 215,656,038/x
  3. Step 3: Cross multiply
    389,496,294x = 537,521,681.88 × 215,656,038
  4. Step 4: Simplify right side
    389,496,294x = 115,919,796,253,337,184
  5. Step 5: Solve for x
    x = 115,919,796,253,337,184/389,496,294
  6. Step 6: Final answer
    x = 297,614,632.13

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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.