Home / 28,378,844.80-42,559,972.80-10,180,931.20

Finding the Fourth Proportional to 28,378,844.80, 42,559,972.80 and 10,180,931.20

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Solution

The fourth proportional to 28,378,844.80, 42,559,972.80 and 10,180,931.20 is: 15,268,421.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378,844.80 : 42,559,972.80 = 10,180,931.20 : x
  2. Step 2: Convert to fraction form
    28,378,844.80/42,559,972.80 = 10,180,931.20/x
  3. Step 3: Cross multiply
    28,378,844.80x = 42,559,972.80 × 10,180,931.20
  4. Step 4: Simplify right side
    28,378,844.80x = 433,300,154,950,671.31
  5. Step 5: Solve for x
    x = 433,300,154,950,671.31/28,378,844.80
  6. Step 6: Final answer
    x = 15,268,421.18

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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.