Home / 10,512,068.90-15,768,103.35-9,378,328.10

Finding the Fourth Proportional to 10,512,068.90, 15,768,103.35 and 9,378,328.10

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Solution

The fourth proportional to 10,512,068.90, 15,768,103.35 and 9,378,328.10 is: 14,067,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512,068.90 : 15,768,103.35 = 9,378,328.10 : x
  2. Step 2: Convert to fraction form
    10,512,068.90/15,768,103.35 = 9,378,328.10/x
  3. Step 3: Cross multiply
    10,512,068.90x = 15,768,103.35 × 9,378,328.10
  4. Step 4: Simplify right side
    10,512,068.90x = 147,878,446,731,009.12
  5. Step 5: Solve for x
    x = 147,878,446,731,009.12/10,512,068.90
  6. Step 6: Final answer
    x = 14,067,492.15

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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.