Home / 810,286,034.65-1,117,852,320.49-542,448,155.43

Finding the Fourth Proportional to 810,286,034.65, 1,117,852,320.49 and 542,448,155.43

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Solution

The fourth proportional to 810,286,034.65, 1,117,852,320.49 and 542,448,155.43 is: 748,349,228.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,286,034.65 : 1,117,852,320.49 = 542,448,155.43 : x
  2. Step 2: Convert to fraction form
    810,286,034.65/1,117,852,320.49 = 542,448,155.43/x
  3. Step 3: Cross multiply
    810,286,034.65x = 1,117,852,320.49 × 542,448,155.43
  4. Step 4: Simplify right side
    810,286,034.65x = 606,376,929,291,589,504
  5. Step 5: Solve for x
    x = 606,376,929,291,589,504/810,286,034.65
  6. Step 6: Final answer
    x = 748,349,228.99

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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.