Home / 28,167,613.02-38,872,261.17-15,778,235.34

Finding the Fourth Proportional to 28,167,613.02, 38,872,261.17 and 15,778,235.34

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Solution

The fourth proportional to 28,167,613.02, 38,872,261.17 and 15,778,235.34 is: 21,774,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,167,613.02 : 38,872,261.17 = 15,778,235.34 : x
  2. Step 2: Convert to fraction form
    28,167,613.02/38,872,261.17 = 15,778,235.34/x
  3. Step 3: Cross multiply
    28,167,613.02x = 38,872,261.17 × 15,778,235.34
  4. Step 4: Simplify right side
    28,167,613.02x = 613,335,684,938,203.75
  5. Step 5: Solve for x
    x = 613,335,684,938,203.75/28,167,613.02
  6. Step 6: Final answer
    x = 21,774,499.83

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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.