Home / 39,047,701.06-53,888,421.18-21,644,779.78

Finding the Fourth Proportional to 39,047,701.06, 53,888,421.18 and 21,644,779.78

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Solution

The fourth proportional to 39,047,701.06, 53,888,421.18 and 21,644,779.78 is: 29,871,233.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,047,701.06 : 53,888,421.18 = 21,644,779.78 : x
  2. Step 2: Convert to fraction form
    39,047,701.06/53,888,421.18 = 21,644,779.78/x
  3. Step 3: Cross multiply
    39,047,701.06x = 53,888,421.18 × 21,644,779.78
  4. Step 4: Simplify right side
    39,047,701.06x = 1,166,403,009,132,987.75
  5. Step 5: Solve for x
    x = 1,166,403,009,132,987.75/39,047,701.06
  6. Step 6: Final answer
    x = 29,871,233.84

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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.