Home / 30,347,138.60-41,869,490.20-18,574,133.64

Finding the Fourth Proportional to 30,347,138.60, 41,869,490.20 and 18,574,133.64

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Solution

The fourth proportional to 30,347,138.60, 41,869,490.20 and 18,574,133.64 is: 25,626,452.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347,138.60 : 41,869,490.20 = 18,574,133.64 : x
  2. Step 2: Convert to fraction form
    30,347,138.60/41,869,490.20 = 18,574,133.64/x
  3. Step 3: Cross multiply
    30,347,138.60x = 41,869,490.20 × 18,574,133.64
  4. Step 4: Simplify right side
    30,347,138.60x = 777,689,506,413,470.38
  5. Step 5: Solve for x
    x = 777,689,506,413,470.38/30,347,138.60
  6. Step 6: Final answer
    x = 25,626,452.52

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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.