Home / 345,019,681.51-517,691,134.31-170,047,331.62

Finding the Fourth Proportional to 345,019,681.51, 517,691,134.31 and 170,047,331.62

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Solution

The fourth proportional to 345,019,681.51, 517,691,134.31 and 170,047,331.62 is: 255,150,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,019,681.51 : 517,691,134.31 = 170,047,331.62 : x
  2. Step 2: Convert to fraction form
    345,019,681.51/517,691,134.31 = 170,047,331.62/x
  3. Step 3: Cross multiply
    345,019,681.51x = 517,691,134.31 × 170,047,331.62
  4. Step 4: Simplify right side
    345,019,681.51x = 88,031,995,991,896,304
  5. Step 5: Solve for x
    x = 88,031,995,991,896,304/345,019,681.51
  6. Step 6: Final answer
    x = 255,150,649.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.