Home / 21,840,997,244.90-30,161,392,425.06-20,651,114,969.06

Finding the Fourth Proportional to 21,840,997,244.90, 30,161,392,425.06 and 20,651,114,969.06

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Solution

The fourth proportional to 21,840,997,244.90, 30,161,392,425.06 and 20,651,114,969.06 is: 28,518,220,830.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,840,997,244.90 : 30,161,392,425.06 = 20,651,114,969.06 : x
  2. Step 2: Convert to fraction form
    21,840,997,244.90/30,161,392,425.06 = 20,651,114,969.06/x
  3. Step 3: Cross multiply
    21,840,997,244.90x = 30,161,392,425.06 × 20,651,114,969.06
  4. Step 4: Simplify right side
    21,840,997,244.90x = 622,866,382,596,849,532,928
  5. Step 5: Solve for x
    x = 622,866,382,596,849,532,928/21,840,997,244.90
  6. Step 6: Final answer
    x = 28,518,220,830.89

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.