Home / 8,742,657.38-12,064,867.18-5,120,985.38

Finding the Fourth Proportional to 8,742,657.38, 12,064,867.18 and 5,120,985.38

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Solution

The fourth proportional to 8,742,657.38, 12,064,867.18 and 5,120,985.38 is: 7,066,959.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742,657.38 : 12,064,867.18 = 5,120,985.38 : x
  2. Step 2: Convert to fraction form
    8,742,657.38/12,064,867.18 = 5,120,985.38/x
  3. Step 3: Cross multiply
    8,742,657.38x = 12,064,867.18 × 5,120,985.38
  4. Step 4: Simplify right side
    8,742,657.38x = 61,784,008,367,295.03
  5. Step 5: Solve for x
    x = 61,784,008,367,295.03/8,742,657.38
  6. Step 6: Final answer
    x = 7,066,959.82

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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.