Home / 21,312,085.20-31,968,127.80-14,509,640.40

Finding the Fourth Proportional to 21,312,085.20, 31,968,127.80 and 14,509,640.40

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Solution

The fourth proportional to 21,312,085.20, 31,968,127.80 and 14,509,640.40 is: 21,764,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,312,085.20 : 31,968,127.80 = 14,509,640.40 : x
  2. Step 2: Convert to fraction form
    21,312,085.20/31,968,127.80 = 14,509,640.40/x
  3. Step 3: Cross multiply
    21,312,085.20x = 31,968,127.80 × 14,509,640.40
  4. Step 4: Simplify right side
    21,312,085.20x = 463,846,038,639,243.12
  5. Step 5: Solve for x
    x = 463,846,038,639,243.12/21,312,085.20
  6. Step 6: Final answer
    x = 21,764,460.60

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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.