Home / 38,423,435.18-53,024,758.80-21,019,406.72

Finding the Fourth Proportional to 38,423,435.18, 53,024,758.80 and 21,019,406.72

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Solution

The fourth proportional to 38,423,435.18, 53,024,758.80 and 21,019,406.72 is: 29,007,010.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,423,435.18 : 53,024,758.80 = 21,019,406.72 : x
  2. Step 2: Convert to fraction form
    38,423,435.18/53,024,758.80 = 21,019,406.72/x
  3. Step 3: Cross multiply
    38,423,435.18x = 53,024,758.80 × 21,019,406.72
  4. Step 4: Simplify right side
    38,423,435.18x = 1,114,548,971,447,099
  5. Step 5: Solve for x
    x = 1,114,548,971,447,099/38,423,435.18
  6. Step 6: Final answer
    x = 29,007,010.08

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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.