Home / 356,156,663.34-491,496,242.01-197,397,036.11

Finding the Fourth Proportional to 356,156,663.34, 491,496,242.01 and 197,397,036.11

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Solution

The fourth proportional to 356,156,663.34, 491,496,242.01 and 197,397,036.11 is: 272,407,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,156,663.34 : 491,496,242.01 = 197,397,036.11 : x
  2. Step 2: Convert to fraction form
    356,156,663.34/491,496,242.01 = 197,397,036.11/x
  3. Step 3: Cross multiply
    356,156,663.34x = 491,496,242.01 × 197,397,036.11
  4. Step 4: Simplify right side
    356,156,663.34x = 97,019,901,431,894,640
  5. Step 5: Solve for x
    x = 97,019,901,431,894,640/356,156,663.34
  6. Step 6: Final answer
    x = 272,407,935.66

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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.