Home / 7,920,069.12-10,929,699.87-4,298,397.12

Finding the Fourth Proportional to 7,920,069.12, 10,929,699.87 and 4,298,397.12

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Solution

The fourth proportional to 7,920,069.12, 10,929,699.87 and 4,298,397.12 is: 5,931,790.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920,069.12 : 10,929,699.87 = 4,298,397.12 : x
  2. Step 2: Convert to fraction form
    7,920,069.12/10,929,699.87 = 4,298,397.12/x
  3. Step 3: Cross multiply
    7,920,069.12x = 10,929,699.87 × 4,298,397.12
  4. Step 4: Simplify right side
    7,920,069.12x = 46,980,190,443,672.38
  5. Step 5: Solve for x
    x = 46,980,190,443,672.38/7,920,069.12
  6. Step 6: Final answer
    x = 5,931,790.46

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1.5x scale

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.