Home / 28,165,985.66-42,176,216.10-19,439,192.39

Finding the Fourth Proportional to 28,165,985.66, 42,176,216.10 and 19,439,192.39

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Solution

The fourth proportional to 28,165,985.66, 42,176,216.10 and 19,439,192.39 is: 29,108,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165,985.66 : 42,176,216.10 = 19,439,192.39 : x
  2. Step 2: Convert to fraction form
    28,165,985.66/42,176,216.10 = 19,439,192.39/x
  3. Step 3: Cross multiply
    28,165,985.66x = 42,176,216.10 × 19,439,192.39
  4. Step 4: Simplify right side
    28,165,985.66x = 819,871,578,766,337.50
  5. Step 5: Solve for x
    x = 819,871,578,766,337.50/28,165,985.66
  6. Step 6: Final answer
    x = 29,108,570.48

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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.