Home / 38,307,686.10-52,865,728.53-20,905,152.66

Finding the Fourth Proportional to 38,307,686.10, 52,865,728.53 and 20,905,152.66

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Solution

The fourth proportional to 38,307,686.10, 52,865,728.53 and 20,905,152.66 is: 28,849,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,307,686.10 : 52,865,728.53 = 20,905,152.66 : x
  2. Step 2: Convert to fraction form
    38,307,686.10/52,865,728.53 = 20,905,152.66/x
  3. Step 3: Cross multiply
    38,307,686.10x = 52,865,728.53 × 20,905,152.66
  4. Step 4: Simplify right side
    38,307,686.10x = 1,105,166,125,401,767.38
  5. Step 5: Solve for x
    x = 1,105,166,125,401,767.38/38,307,686.10
  6. Step 6: Final answer
    x = 28,849,722.81

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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.