Home / 12,303,001.20-18,454,501.80-5,128,547.70

Finding the Fourth Proportional to 12,303,001.20, 18,454,501.80 and 5,128,547.70

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Solution

The fourth proportional to 12,303,001.20, 18,454,501.80 and 5,128,547.70 is: 7,692,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303,001.20 : 18,454,501.80 = 5,128,547.70 : x
  2. Step 2: Convert to fraction form
    12,303,001.20/18,454,501.80 = 5,128,547.70/x
  3. Step 3: Cross multiply
    12,303,001.20x = 18,454,501.80 × 5,128,547.70
  4. Step 4: Simplify right side
    12,303,001.20x = 94,644,792,761,035.88
  5. Step 5: Solve for x
    x = 94,644,792,761,035.88/12,303,001.20
  6. Step 6: Final answer
    x = 7,692,821.55

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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.