Home / 1,072,581,343.20-1,608,872,014.80-426,349,087.20

Finding the Fourth Proportional to 1,072,581,343.20, 1,608,872,014.80 and 426,349,087.20

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Solution

The fourth proportional to 1,072,581,343.20, 1,608,872,014.80 and 426,349,087.20 is: 639,523,630.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,581,343.20 : 1,608,872,014.80 = 426,349,087.20 : x
  2. Step 2: Convert to fraction form
    1,072,581,343.20/1,608,872,014.80 = 426,349,087.20/x
  3. Step 3: Cross multiply
    1,072,581,343.20x = 1,608,872,014.80 × 426,349,087.20
  4. Step 4: Simplify right side
    1,072,581,343.20x = 685,941,114,931,604,864
  5. Step 5: Solve for x
    x = 685,941,114,931,604,864/1,072,581,343.20
  6. Step 6: Final answer
    x = 639,523,630.80

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Double scale
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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.