Home / 19,879,084.80-29,818,627.20-7,100,006.40

Finding the Fourth Proportional to 19,879,084.80, 29,818,627.20 and 7,100,006.40

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Solution

The fourth proportional to 19,879,084.80, 29,818,627.20 and 7,100,006.40 is: 10,650,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,879,084.80 : 29,818,627.20 = 7,100,006.40 : x
  2. Step 2: Convert to fraction form
    19,879,084.80/29,818,627.20 = 7,100,006.40/x
  3. Step 3: Cross multiply
    19,879,084.80x = 29,818,627.20 × 7,100,006.40
  4. Step 4: Simplify right side
    19,879,084.80x = 211,712,443,959,214.09
  5. Step 5: Solve for x
    x = 211,712,443,959,214.09/19,879,084.80
  6. Step 6: Final answer
    x = 10,650,009.60

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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.