Home / 12,312,752.90-18,478,460.55-8,051,504.90

Finding the Fourth Proportional to 12,312,752.90, 18,478,460.55 and 8,051,504.90

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Solution

The fourth proportional to 12,312,752.90, 18,478,460.55 and 8,051,504.90 is: 12,083,359.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312,752.90 : 18,478,460.55 = 8,051,504.90 : x
  2. Step 2: Convert to fraction form
    12,312,752.90/18,478,460.55 = 8,051,504.90/x
  3. Step 3: Cross multiply
    12,312,752.90x = 18,478,460.55 × 8,051,504.90
  4. Step 4: Simplify right side
    12,312,752.90x = 148,779,415,662,781.72
  5. Step 5: Solve for x
    x = 148,779,415,662,781.72/12,312,752.90
  6. Step 6: Final answer
    x = 12,083,359.17

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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.