Home / 523,121,106.51-784,710,275.45-212,182,544.43

Finding the Fourth Proportional to 523,121,106.51, 784,710,275.45 and 212,182,544.43

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Solution

The fourth proportional to 523,121,106.51, 784,710,275.45 and 212,182,544.43 is: 318,285,423.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,121,106.51 : 784,710,275.45 = 212,182,544.43 : x
  2. Step 2: Convert to fraction form
    523,121,106.51/784,710,275.45 = 212,182,544.43/x
  3. Step 3: Cross multiply
    523,121,106.51x = 784,710,275.45 × 212,182,544.43
  4. Step 4: Simplify right side
    523,121,106.51x = 166,501,822,884,286,272
  5. Step 5: Solve for x
    x = 166,501,822,884,286,272/523,121,106.51
  6. Step 6: Final answer
    x = 318,285,423.42

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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.