Home / 78,959,097.60-118,438,646.40-25,111,852.80

Finding the Fourth Proportional to 78,959,097.60, 118,438,646.40 and 25,111,852.80

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Solution

The fourth proportional to 78,959,097.60, 118,438,646.40 and 25,111,852.80 is: 37,667,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,959,097.60 : 118,438,646.40 = 25,111,852.80 : x
  2. Step 2: Convert to fraction form
    78,959,097.60/118,438,646.40 = 25,111,852.80/x
  3. Step 3: Cross multiply
    78,959,097.60x = 118,438,646.40 × 25,111,852.80
  4. Step 4: Simplify right side
    78,959,097.60x = 2,974,213,854,228,050
  5. Step 5: Solve for x
    x = 2,974,213,854,228,050/78,959,097.60
  6. Step 6: Final answer
    x = 37,667,779.20

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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.