Home / 19,289,457.12-28,929,312.72-7,152,250.08

Finding the Fourth Proportional to 19,289,457.12, 28,929,312.72 and 7,152,250.08

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Solution

The fourth proportional to 19,289,457.12, 28,929,312.72 and 7,152,250.08 is: 10,726,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289,457.12 : 28,929,312.72 = 7,152,250.08 : x
  2. Step 2: Convert to fraction form
    19,289,457.12/28,929,312.72 = 7,152,250.08/x
  3. Step 3: Cross multiply
    19,289,457.12x = 28,929,312.72 × 7,152,250.08
  4. Step 4: Simplify right side
    19,289,457.12x = 206,909,679,215,965
  5. Step 5: Solve for x
    x = 206,909,679,215,965/19,289,457.12
  6. Step 6: Final answer
    x = 10,726,568.30

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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.