Home / 870,129,401.20-1,303,280,914.20-755,338,145.20

Finding the Fourth Proportional to 870,129,401.20, 1,303,280,914.20 and 755,338,145.20

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Solution

The fourth proportional to 870,129,401.20, 1,303,280,914.20 and 755,338,145.20 is: 1,131,346,426.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,129,401.20 : 1,303,280,914.20 = 755,338,145.20 : x
  2. Step 2: Convert to fraction form
    870,129,401.20/1,303,280,914.20 = 755,338,145.20/x
  3. Step 3: Cross multiply
    870,129,401.20x = 1,303,280,914.20 × 755,338,145.20
  4. Step 4: Simplify right side
    870,129,401.20x = 984,417,788,406,388,480
  5. Step 5: Solve for x
    x = 984,417,788,406,388,480/870,129,401.20
  6. Step 6: Final answer
    x = 1,131,346,426.23

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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.