Home / 28,002,001.60-42,003,002.40-7,807,243.60

Finding the Fourth Proportional to 28,002,001.60, 42,003,002.40 and 7,807,243.60

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Solution

The fourth proportional to 28,002,001.60, 42,003,002.40 and 7,807,243.60 is: 11,710,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002,001.60 : 42,003,002.40 = 7,807,243.60 : x
  2. Step 2: Convert to fraction form
    28,002,001.60/42,003,002.40 = 7,807,243.60/x
  3. Step 3: Cross multiply
    28,002,001.60x = 42,003,002.40 × 7,807,243.60
  4. Step 4: Simplify right side
    28,002,001.60x = 327,927,671,668,184.62
  5. Step 5: Solve for x
    x = 327,927,671,668,184.62/28,002,001.60
  6. Step 6: Final answer
    x = 11,710,865.40

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Similar ratio
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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.