Home / 18,709,971.13-28,065,962.74-5,931,472.28

Finding the Fourth Proportional to 18,709,971.13, 28,065,962.74 and 5,931,472.28

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Solution

The fourth proportional to 18,709,971.13, 28,065,962.74 and 5,931,472.28 is: 8,897,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709,971.13 : 28,065,962.74 = 5,931,472.28 : x
  2. Step 2: Convert to fraction form
    18,709,971.13/28,065,962.74 = 5,931,472.28/x
  3. Step 3: Cross multiply
    18,709,971.13x = 28,065,962.74 × 5,931,472.28
  4. Step 4: Simplify right side
    18,709,971.13x = 166,472,480,003,822.84
  5. Step 5: Solve for x
    x = 166,472,480,003,822.84/18,709,971.13
  6. Step 6: Final answer
    x = 8,897,527.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.