Home / 21,308,565.20-31,926,106.20-9,925,667.60

Finding the Fourth Proportional to 21,308,565.20, 31,926,106.20 and 9,925,667.60

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Solution

The fourth proportional to 21,308,565.20, 31,926,106.20 and 9,925,667.60 is: 14,871,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308,565.20 : 31,926,106.20 = 9,925,667.60 : x
  2. Step 2: Convert to fraction form
    21,308,565.20/31,926,106.20 = 9,925,667.60/x
  3. Step 3: Cross multiply
    21,308,565.20x = 31,926,106.20 × 9,925,667.60
  4. Step 4: Simplify right side
    21,308,565.20x = 316,887,917,903,499.12
  5. Step 5: Solve for x
    x = 316,887,917,903,499.12/21,308,565.20
  6. Step 6: Final answer
    x = 14,871,386.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.