Home / 28,403,430.40-42,605,145.60-9,234,812.80

Finding the Fourth Proportional to 28,403,430.40, 42,605,145.60 and 9,234,812.80

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Solution

The fourth proportional to 28,403,430.40, 42,605,145.60 and 9,234,812.80 is: 13,852,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403,430.40 : 42,605,145.60 = 9,234,812.80 : x
  2. Step 2: Convert to fraction form
    28,403,430.40/42,605,145.60 = 9,234,812.80/x
  3. Step 3: Cross multiply
    28,403,430.40x = 42,605,145.60 × 9,234,812.80
  4. Step 4: Simplify right side
    28,403,430.40x = 393,450,543,932,743.75
  5. Step 5: Solve for x
    x = 393,450,543,932,743.75/28,403,430.40
  6. Step 6: Final answer
    x = 13,852,219.20

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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.