Home / 9,153,129.17-12,630,483.35-5,431,318.76

Finding the Fourth Proportional to 9,153,129.17, 12,630,483.35 and 5,431,318.76

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Solution

The fourth proportional to 9,153,129.17, 12,630,483.35 and 5,431,318.76 is: 7,494,724.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153,129.17 : 12,630,483.35 = 5,431,318.76 : x
  2. Step 2: Convert to fraction form
    9,153,129.17/12,630,483.35 = 5,431,318.76/x
  3. Step 3: Cross multiply
    9,153,129.17x = 12,630,483.35 × 5,431,318.76
  4. Step 4: Simplify right side
    9,153,129.17x = 68,600,181,166,722.64
  5. Step 5: Solve for x
    x = 68,600,181,166,722.64/9,153,129.17
  6. Step 6: Final answer
    x = 7,494,724.47

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Double scale
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1.5x scale

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.