Home / 28,512,006.30-42,768,009.45-7,236,870.30

Finding the Fourth Proportional to 28,512,006.30, 42,768,009.45 and 7,236,870.30

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Solution

The fourth proportional to 28,512,006.30, 42,768,009.45 and 7,236,870.30 is: 10,855,305.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,006.30 : 42,768,009.45 = 7,236,870.30 : x
  2. Step 2: Convert to fraction form
    28,512,006.30/42,768,009.45 = 7,236,870.30/x
  3. Step 3: Cross multiply
    28,512,006.30x = 42,768,009.45 × 7,236,870.30
  4. Step 4: Simplify right side
    28,512,006.30x = 309,506,537,378,824.38
  5. Step 5: Solve for x
    x = 309,506,537,378,824.38/28,512,006.30
  6. Step 6: Final answer
    x = 10,855,305.45

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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.