Home / 20,090,969.90-30,148,264.65-7,312,766.30

Finding the Fourth Proportional to 20,090,969.90, 30,148,264.65 and 7,312,766.30

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Solution

The fourth proportional to 20,090,969.90, 30,148,264.65 and 7,312,766.30 is: 10,973,448.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090,969.90 : 30,148,264.65 = 7,312,766.30 : x
  2. Step 2: Convert to fraction form
    20,090,969.90/30,148,264.65 = 7,312,766.30/x
  3. Step 3: Cross multiply
    20,090,969.90x = 30,148,264.65 × 7,312,766.30
  4. Step 4: Simplify right side
    20,090,969.90x = 220,467,213,736,001.28
  5. Step 5: Solve for x
    x = 220,467,213,736,001.28/20,090,969.90
  6. Step 6: Final answer
    x = 10,973,448.01

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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.