Home / 430,971,243.04-646,456,870-103,446,755.36

Finding the Fourth Proportional to 430,971,243.04, 646,456,870 and 103,446,755.36

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Solution

The fourth proportional to 430,971,243.04, 646,456,870 and 103,446,755.36 is: 155,170,134.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,971,243.04 : 646,456,870 = 103,446,755.36 : x
  2. Step 2: Convert to fraction form
    430,971,243.04/646,456,870 = 103,446,755.36/x
  3. Step 3: Cross multiply
    430,971,243.04x = 646,456,870 × 103,446,755.36
  4. Step 4: Simplify right side
    430,971,243.04x = 66,873,865,681,681,320
  5. Step 5: Solve for x
    x = 66,873,865,681,681,320/430,971,243.04
  6. Step 6: Final answer
    x = 155,170,134.35

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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.