Home / 12,312,005.60-18,468,008.40-8,280,927.20

Finding the Fourth Proportional to 12,312,005.60, 18,468,008.40 and 8,280,927.20

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Solution

The fourth proportional to 12,312,005.60, 18,468,008.40 and 8,280,927.20 is: 12,421,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312,005.60 : 18,468,008.40 = 8,280,927.20 : x
  2. Step 2: Convert to fraction form
    12,312,005.60/18,468,008.40 = 8,280,927.20/x
  3. Step 3: Cross multiply
    12,312,005.60x = 18,468,008.40 × 8,280,927.20
  4. Step 4: Simplify right side
    12,312,005.60x = 152,932,233,089,388.47
  5. Step 5: Solve for x
    x = 152,932,233,089,388.47/12,312,005.60
  6. Step 6: Final answer
    x = 12,421,390.80

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1.5x scale

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.