Home / 21,341,668.80-32,012,503.20-20,109,950.40

Finding the Fourth Proportional to 21,341,668.80, 32,012,503.20 and 20,109,950.40

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Solution

The fourth proportional to 21,341,668.80, 32,012,503.20 and 20,109,950.40 is: 30,164,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,341,668.80 : 32,012,503.20 = 20,109,950.40 : x
  2. Step 2: Convert to fraction form
    21,341,668.80/32,012,503.20 = 20,109,950.40/x
  3. Step 3: Cross multiply
    21,341,668.80x = 32,012,503.20 × 20,109,950.40
  4. Step 4: Simplify right side
    21,341,668.80x = 643,769,851,531,841.25
  5. Step 5: Solve for x
    x = 643,769,851,531,841.25/21,341,668.80
  6. Step 6: Final answer
    x = 30,164,925.60

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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.