Home / 386,240,502.47-532,995,674.72-218,988,018.18

Finding the Fourth Proportional to 386,240,502.47, 532,995,674.72 and 218,988,018.18

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Solution

The fourth proportional to 386,240,502.47, 532,995,674.72 and 218,988,018.18 is: 302,194,269.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,240,502.47 : 532,995,674.72 = 218,988,018.18 : x
  2. Step 2: Convert to fraction form
    386,240,502.47/532,995,674.72 = 218,988,018.18/x
  3. Step 3: Cross multiply
    386,240,502.47x = 532,995,674.72 × 218,988,018.18
  4. Step 4: Simplify right side
    386,240,502.47x = 116,719,666,504,349,792
  5. Step 5: Solve for x
    x = 116,719,666,504,349,792/386,240,502.47
  6. Step 6: Final answer
    x = 302,194,269.53

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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.