Home / 523,121,107.51-784,710,276.95-212,182,545.43

Finding the Fourth Proportional to 523,121,107.51, 784,710,276.95 and 212,182,545.43

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Solution

The fourth proportional to 523,121,107.51, 784,710,276.95 and 212,182,545.43 is: 318,285,424.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,121,107.51 : 784,710,276.95 = 212,182,545.43 : x
  2. Step 2: Convert to fraction form
    523,121,107.51/784,710,276.95 = 212,182,545.43/x
  3. Step 3: Cross multiply
    523,121,107.51x = 784,710,276.95 × 212,182,545.43
  4. Step 4: Simplify right side
    523,121,107.51x = 166,501,823,988,331,264
  5. Step 5: Solve for x
    x = 166,501,823,988,331,264/523,121,107.51
  6. Step 6: Final answer
    x = 318,285,424.92

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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.