Home / 28,808,852.68-39,755,658-15,756,071.20

Finding the Fourth Proportional to 28,808,852.68, 39,755,658 and 15,756,071.20

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Solution

The fourth proportional to 28,808,852.68, 39,755,658 and 15,756,071.20 is: 21,743,072.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808,852.68 : 39,755,658 = 15,756,071.20 : x
  2. Step 2: Convert to fraction form
    28,808,852.68/39,755,658 = 15,756,071.20/x
  3. Step 3: Cross multiply
    28,808,852.68x = 39,755,658 × 15,756,071.20
  4. Step 4: Simplify right side
    28,808,852.68x = 626,392,978,050,849.62
  5. Step 5: Solve for x
    x = 626,392,978,050,849.62/28,808,852.68
  6. Step 6: Final answer
    x = 21,743,072.69

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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.