Home / 684,768,013.88-944,981,671.02-371,502,217.88

Finding the Fourth Proportional to 684,768,013.88, 944,981,671.02 and 371,502,217.88

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Solution

The fourth proportional to 684,768,013.88, 944,981,671.02 and 371,502,217.88 is: 512,674,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,768,013.88 : 944,981,671.02 = 371,502,217.88 : x
  2. Step 2: Convert to fraction form
    684,768,013.88/944,981,671.02 = 371,502,217.88/x
  3. Step 3: Cross multiply
    684,768,013.88x = 944,981,671.02 × 371,502,217.88
  4. Step 4: Simplify right side
    684,768,013.88x = 351,062,786,639,878,528
  5. Step 5: Solve for x
    x = 351,062,786,639,878,528/684,768,013.88
  6. Step 6: Final answer
    x = 512,674,043.65

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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.