Home / 21,708,041.60-32,562,062.40-13,190,988.80

Finding the Fourth Proportional to 21,708,041.60, 32,562,062.40 and 13,190,988.80

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Solution

The fourth proportional to 21,708,041.60, 32,562,062.40 and 13,190,988.80 is: 19,786,483.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708,041.60 : 32,562,062.40 = 13,190,988.80 : x
  2. Step 2: Convert to fraction form
    21,708,041.60/32,562,062.40 = 13,190,988.80/x
  3. Step 3: Cross multiply
    21,708,041.60x = 32,562,062.40 × 13,190,988.80
  4. Step 4: Simplify right side
    21,708,041.60x = 429,525,800,423,301.12
  5. Step 5: Solve for x
    x = 429,525,800,423,301.12/21,708,041.60
  6. Step 6: Final answer
    x = 19,786,483.20

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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.