Home / 21,860,431.20-32,790,646.80-19,341,007.20

Finding the Fourth Proportional to 21,860,431.20, 32,790,646.80 and 19,341,007.20

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Solution

The fourth proportional to 21,860,431.20, 32,790,646.80 and 19,341,007.20 is: 29,011,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,860,431.20 : 32,790,646.80 = 19,341,007.20 : x
  2. Step 2: Convert to fraction form
    21,860,431.20/32,790,646.80 = 19,341,007.20/x
  3. Step 3: Cross multiply
    21,860,431.20x = 32,790,646.80 × 19,341,007.20
  4. Step 4: Simplify right side
    21,860,431.20x = 634,204,135,851,457
  5. Step 5: Solve for x
    x = 634,204,135,851,457/21,860,431.20
  6. Step 6: Final answer
    x = 29,011,510.80

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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.