Home / 745,161,344,776.72-1,029,170,896,028.80-500,866,686,508.28

Finding the Fourth Proportional to 745,161,344,776.72, 1,029,170,896,028.80 and 500,866,686,508.28

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Solution

The fourth proportional to 745,161,344,776.72, 1,029,170,896,028.80 and 500,866,686,508.28 is: 691,766,179,442.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,161,344,776.72 : 1,029,170,896,028.80 = 500,866,686,508.28 : x
  2. Step 2: Convert to fraction form
    745,161,344,776.72/1,029,170,896,028.80 = 500,866,686,508.28/x
  3. Step 3: Cross multiply
    745,161,344,776.72x = 1,029,170,896,028.80 × 500,866,686,508.28
  4. Step 4: Simplify right side
    745,161,344,776.72x = 515,477,416,544,702,654,578,688
  5. Step 5: Solve for x
    x = 515,477,416,544,702,654,578,688/745,161,344,776.72
  6. Step 6: Final answer
    x = 691,766,179,442.87

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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.