Home / 15,318,547.20-21,140,066.88-8,793,368.64

Finding the Fourth Proportional to 15,318,547.20, 21,140,066.88 and 8,793,368.64

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Solution

The fourth proportional to 15,318,547.20, 21,140,066.88 and 8,793,368.64 is: 12,135,119.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,318,547.20 : 21,140,066.88 = 8,793,368.64 : x
  2. Step 2: Convert to fraction form
    15,318,547.20/21,140,066.88 = 8,793,368.64/x
  3. Step 3: Cross multiply
    15,318,547.20x = 21,140,066.88 × 8,793,368.64
  4. Step 4: Simplify right side
    15,318,547.20x = 185,892,401,150,094.66
  5. Step 5: Solve for x
    x = 185,892,401,150,094.66/15,318,547.20
  6. Step 6: Final answer
    x = 12,135,119.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.