Home / 279,502,127-385,707,768.90-152,343,901.16

Finding the Fourth Proportional to 279,502,127, 385,707,768.90 and 152,343,901.16

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Solution

The fourth proportional to 279,502,127, 385,707,768.90 and 152,343,901.16 is: 210,231,767.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,502,127 : 385,707,768.90 = 152,343,901.16 : x
  2. Step 2: Convert to fraction form
    279,502,127/385,707,768.90 = 152,343,901.16/x
  3. Step 3: Cross multiply
    279,502,127x = 385,707,768.90 × 152,343,901.16
  4. Step 4: Simplify right side
    279,502,127x = 58,760,226,221,945,720
  5. Step 5: Solve for x
    x = 58,760,226,221,945,720/279,502,127
  6. Step 6: Final answer
    x = 210,231,767.65

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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.