Home / 12,692,173.60-19,010,266.80-7,634,663.20

Finding the Fourth Proportional to 12,692,173.60, 19,010,266.80 and 7,634,663.20

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Solution

The fourth proportional to 12,692,173.60, 19,010,266.80 and 7,634,663.20 is: 11,435,155.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692,173.60 : 19,010,266.80 = 7,634,663.20 : x
  2. Step 2: Convert to fraction form
    12,692,173.60/19,010,266.80 = 7,634,663.20/x
  3. Step 3: Cross multiply
    12,692,173.60x = 19,010,266.80 × 7,634,663.20
  4. Step 4: Simplify right side
    12,692,173.60x = 145,136,984,360,141.78
  5. Step 5: Solve for x
    x = 145,136,984,360,141.78/12,692,173.60
  6. Step 6: Final answer
    x = 11,435,155.94

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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.