Home / 9,989,782.32-13,785,898.68-5,406,103.92

Finding the Fourth Proportional to 9,989,782.32, 13,785,898.68 and 5,406,103.92

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Solution

The fourth proportional to 9,989,782.32, 13,785,898.68 and 5,406,103.92 is: 7,460,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,782.32 : 13,785,898.68 = 5,406,103.92 : x
  2. Step 2: Convert to fraction form
    9,989,782.32/13,785,898.68 = 5,406,103.92/x
  3. Step 3: Cross multiply
    9,989,782.32x = 13,785,898.68 × 5,406,103.92
  4. Step 4: Simplify right side
    9,989,782.32x = 74,528,000,894,670.83
  5. Step 5: Solve for x
    x = 74,528,000,894,670.83/9,989,782.32
  6. Step 6: Final answer
    x = 7,460,422.91

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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.