Home / 21,490,896.60-32,236,344.90-19,139,434.20

Finding the Fourth Proportional to 21,490,896.60, 32,236,344.90 and 19,139,434.20

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Solution

The fourth proportional to 21,490,896.60, 32,236,344.90 and 19,139,434.20 is: 28,709,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490,896.60 : 32,236,344.90 = 19,139,434.20 : x
  2. Step 2: Convert to fraction form
    21,490,896.60/32,236,344.90 = 19,139,434.20/x
  3. Step 3: Cross multiply
    21,490,896.60x = 32,236,344.90 × 19,139,434.20
  4. Step 4: Simplify right side
    21,490,896.60x = 616,985,402,062,055.50
  5. Step 5: Solve for x
    x = 616,985,402,062,055.50/21,490,896.60
  6. Step 6: Final answer
    x = 28,709,151.30

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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.