Home / 28,403,243.20-42,604,864.80-13,258,705.60

Finding the Fourth Proportional to 28,403,243.20, 42,604,864.80 and 13,258,705.60

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Solution

The fourth proportional to 28,403,243.20, 42,604,864.80 and 13,258,705.60 is: 19,888,058.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403,243.20 : 42,604,864.80 = 13,258,705.60 : x
  2. Step 2: Convert to fraction form
    28,403,243.20/42,604,864.80 = 13,258,705.60/x
  3. Step 3: Cross multiply
    28,403,243.20x = 42,604,864.80 × 13,258,705.60
  4. Step 4: Simplify right side
    28,403,243.20x = 564,885,359,511,002.88
  5. Step 5: Solve for x
    x = 564,885,359,511,002.88/28,403,243.20
  6. Step 6: Final answer
    x = 19,888,058.40

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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.