Home / 1,277,220,021.40-1,915,830,032.10-459,226,034.20

Finding the Fourth Proportional to 1,277,220,021.40, 1,915,830,032.10 and 459,226,034.20

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Solution

The fourth proportional to 1,277,220,021.40, 1,915,830,032.10 and 459,226,034.20 is: 688,839,051.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,220,021.40 : 1,915,830,032.10 = 459,226,034.20 : x
  2. Step 2: Convert to fraction form
    1,277,220,021.40/1,915,830,032.10 = 459,226,034.20/x
  3. Step 3: Cross multiply
    1,277,220,021.40x = 1,915,830,032.10 × 459,226,034.20
  4. Step 4: Simplify right side
    1,277,220,021.40x = 879,799,027,842,541,568
  5. Step 5: Solve for x
    x = 879,799,027,842,541,568/1,277,220,021.40
  6. Step 6: Final answer
    x = 688,839,051.30

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Double scale
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Similar ratio
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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.