Home / 1,129,868,669.25-1,694,808,416.73-342,929,158.05

Finding the Fourth Proportional to 1,129,868,669.25, 1,694,808,416.73 and 342,929,158.05

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Solution

The fourth proportional to 1,129,868,669.25, 1,694,808,416.73 and 342,929,158.05 is: 514,395,379.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,868,669.25 : 1,694,808,416.73 = 342,929,158.05 : x
  2. Step 2: Convert to fraction form
    1,129,868,669.25/1,694,808,416.73 = 342,929,158.05/x
  3. Step 3: Cross multiply
    1,129,868,669.25x = 1,694,808,416.73 × 342,929,158.05
  4. Step 4: Simplify right side
    1,129,868,669.25x = 581,199,223,405,272,448
  5. Step 5: Solve for x
    x = 581,199,223,405,272,448/1,129,868,669.25
  6. Step 6: Final answer
    x = 514,395,379.94

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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.