Home / 21,312,111.20-31,968,166.80-14,509,666.40

Finding the Fourth Proportional to 21,312,111.20, 31,968,166.80 and 14,509,666.40

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Solution

The fourth proportional to 21,312,111.20, 31,968,166.80 and 14,509,666.40 is: 21,764,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,111.20 : 31,968,166.80 = 14,509,666.40 : x
  2. Step 2: Convert to fraction form
    21,312,111.20/31,968,166.80 = 14,509,666.40/x
  3. Step 3: Cross multiply
    21,312,111.20x = 31,968,166.80 × 14,509,666.40
  4. Step 4: Simplify right side
    21,312,111.20x = 463,847,435,687,555.56
  5. Step 5: Solve for x
    x = 463,847,435,687,555.56/21,312,111.20
  6. Step 6: Final answer
    x = 21,764,499.60

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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.