Home / 21,828,613.60-32,679,934.80-19,309,189.60

Finding the Fourth Proportional to 21,828,613.60, 32,679,934.80 and 19,309,189.60

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Solution

The fourth proportional to 21,828,613.60, 32,679,934.80 and 19,309,189.60 is: 28,908,068.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828,613.60 : 32,679,934.80 = 19,309,189.60 : x
  2. Step 2: Convert to fraction form
    21,828,613.60/32,679,934.80 = 19,309,189.60/x
  3. Step 3: Cross multiply
    21,828,613.60x = 32,679,934.80 × 19,309,189.60
  4. Step 4: Simplify right side
    21,828,613.60x = 631,023,057,168,838.12
  5. Step 5: Solve for x
    x = 631,023,057,168,838.12/21,828,613.60
  6. Step 6: Final answer
    x = 28,908,068.50

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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.