Home / 12,769,566.60-19,163,681.10-8,990,430.60

Finding the Fourth Proportional to 12,769,566.60, 19,163,681.10 and 8,990,430.60

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Solution

The fourth proportional to 12,769,566.60, 19,163,681.10 and 8,990,430.60 is: 13,492,215.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769,566.60 : 19,163,681.10 = 8,990,430.60 : x
  2. Step 2: Convert to fraction form
    12,769,566.60/19,163,681.10 = 8,990,430.60/x
  3. Step 3: Cross multiply
    12,769,566.60x = 19,163,681.10 × 8,990,430.60
  4. Step 4: Simplify right side
    12,769,566.60x = 172,289,744,970,081.66
  5. Step 5: Solve for x
    x = 172,289,744,970,081.66/12,769,566.60
  6. Step 6: Final answer
    x = 13,492,215.54

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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.