Home / 39,071,899-53,919,220.62-21,670,908.76

Finding the Fourth Proportional to 39,071,899, 53,919,220.62 and 21,670,908.76

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Solution

The fourth proportional to 39,071,899, 53,919,220.62 and 21,670,908.76 is: 29,905,854.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071,899 : 53,919,220.62 = 21,670,908.76 : x
  2. Step 2: Convert to fraction form
    39,071,899/53,919,220.62 = 21,670,908.76/x
  3. Step 3: Cross multiply
    39,071,899x = 53,919,220.62 × 21,670,908.76
  4. Step 4: Simplify right side
    39,071,899x = 1,168,478,510,466,330.75
  5. Step 5: Solve for x
    x = 1,168,478,510,466,330.75/39,071,899
  6. Step 6: Final answer
    x = 29,905,854.09

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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.