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Finding the Fourth Proportional to 28,973,502.80, 43,460,254.20 and 28,525,605.20

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Solution

The fourth proportional to 28,973,502.80, 43,460,254.20 and 28,525,605.20 is: 42,788,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973,502.80 : 43,460,254.20 = 28,525,605.20 : x
  2. Step 2: Convert to fraction form
    28,973,502.80/43,460,254.20 = 28,525,605.20/x
  3. Step 3: Cross multiply
    28,973,502.80x = 43,460,254.20 × 28,525,605.20
  4. Step 4: Simplify right side
    28,973,502.80x = 1,239,730,053,200,842
  5. Step 5: Solve for x
    x = 1,239,730,053,200,842/28,973,502.80
  6. Step 6: Final answer
    x = 42,788,407.80

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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.