Home / 39,038,123.15-53,871,693.12-21,634,094.69

Finding the Fourth Proportional to 39,038,123.15, 53,871,693.12 and 21,634,094.69

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Solution

The fourth proportional to 39,038,123.15, 53,871,693.12 and 21,634,094.69 is: 29,854,542.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,038,123.15 : 53,871,693.12 = 21,634,094.69 : x
  2. Step 2: Convert to fraction form
    39,038,123.15/53,871,693.12 = 21,634,094.69/x
  3. Step 3: Cross multiply
    39,038,123.15x = 53,871,693.12 × 21,634,094.69
  4. Step 4: Simplify right side
    39,038,123.15x = 1,165,465,309,799,343
  5. Step 5: Solve for x
    x = 1,165,465,309,799,343/39,038,123.15
  6. Step 6: Final answer
    x = 29,854,542.58

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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.