Home / 13,206,876.40-19,810,314.60-6,488,412.40

Finding the Fourth Proportional to 13,206,876.40, 19,810,314.60 and 6,488,412.40

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Solution

The fourth proportional to 13,206,876.40, 19,810,314.60 and 6,488,412.40 is: 9,732,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,876.40 : 19,810,314.60 = 6,488,412.40 : x
  2. Step 2: Convert to fraction form
    13,206,876.40/19,810,314.60 = 6,488,412.40/x
  3. Step 3: Cross multiply
    13,206,876.40x = 19,810,314.60 × 6,488,412.40
  4. Step 4: Simplify right side
    13,206,876.40x = 128,537,490,898,541.06
  5. Step 5: Solve for x
    x = 128,537,490,898,541.06/13,206,876.40
  6. Step 6: Final answer
    x = 9,732,618.60

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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.