Home / 9,687,430-13,369,068.12-5,395,078

Finding the Fourth Proportional to 9,687,430, 13,369,068.12 and 5,395,078

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Solution

The fourth proportional to 9,687,430, 13,369,068.12 and 5,395,078 is: 7,445,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687,430 : 13,369,068.12 = 5,395,078 : x
  2. Step 2: Convert to fraction form
    9,687,430/13,369,068.12 = 5,395,078/x
  3. Step 3: Cross multiply
    9,687,430x = 13,369,068.12 × 5,395,078
  4. Step 4: Simplify right side
    9,687,430x = 72,127,165,294,713.36
  5. Step 5: Solve for x
    x = 72,127,165,294,713.36/9,687,430
  6. Step 6: Final answer
    x = 7,445,438.60

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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.