Home / 778,738,988.04-1,074,659,855.90-426,314,978.74

Finding the Fourth Proportional to 778,738,988.04, 1,074,659,855.90 and 426,314,978.74

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Solution

The fourth proportional to 778,738,988.04, 1,074,659,855.90 and 426,314,978.74 is: 588,314,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,738,988.04 : 1,074,659,855.90 = 426,314,978.74 : x
  2. Step 2: Convert to fraction form
    778,738,988.04/1,074,659,855.90 = 426,314,978.74/x
  3. Step 3: Cross multiply
    778,738,988.04x = 1,074,659,855.90 × 426,314,978.74
  4. Step 4: Simplify right side
    778,738,988.04x = 458,143,593,620,740,032
  5. Step 5: Solve for x
    x = 458,143,593,620,740,032/778,738,988.04
  6. Step 6: Final answer
    x = 588,314,699.35

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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.