Home / 19,931,028.80-29,896,543.20-18,935,700.80

Finding the Fourth Proportional to 19,931,028.80, 29,896,543.20 and 18,935,700.80

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Solution

The fourth proportional to 19,931,028.80, 29,896,543.20 and 18,935,700.80 is: 28,403,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931,028.80 : 29,896,543.20 = 18,935,700.80 : x
  2. Step 2: Convert to fraction form
    19,931,028.80/29,896,543.20 = 18,935,700.80/x
  3. Step 3: Cross multiply
    19,931,028.80x = 29,896,543.20 × 18,935,700.80
  4. Step 4: Simplify right side
    19,931,028.80x = 566,111,996,989,474.62
  5. Step 5: Solve for x
    x = 566,111,996,989,474.62/19,931,028.80
  6. Step 6: Final answer
    x = 28,403,551.20

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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.