Home / 460,215,663.86-690,326,076.45-153,506,934.74

Finding the Fourth Proportional to 460,215,663.86, 690,326,076.45 and 153,506,934.74

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Solution

The fourth proportional to 460,215,663.86, 690,326,076.45 and 153,506,934.74 is: 230,261,262.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,215,663.86 : 690,326,076.45 = 153,506,934.74 : x
  2. Step 2: Convert to fraction form
    460,215,663.86/690,326,076.45 = 153,506,934.74/x
  3. Step 3: Cross multiply
    460,215,663.86x = 690,326,076.45 × 153,506,934.74
  4. Step 4: Simplify right side
    460,215,663.86x = 105,969,839,966,930,416
  5. Step 5: Solve for x
    x = 105,969,839,966,930,416/460,215,663.86
  6. Step 6: Final answer
    x = 230,261,262.90

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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.