Home / 876,853,486.80-1,315,280,230.20-263,357,996.40

Finding the Fourth Proportional to 876,853,486.80, 1,315,280,230.20 and 263,357,996.40

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Solution

The fourth proportional to 876,853,486.80, 1,315,280,230.20 and 263,357,996.40 is: 395,036,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,853,486.80 : 1,315,280,230.20 = 263,357,996.40 : x
  2. Step 2: Convert to fraction form
    876,853,486.80/1,315,280,230.20 = 263,357,996.40/x
  3. Step 3: Cross multiply
    876,853,486.80x = 1,315,280,230.20 × 263,357,996.40
  4. Step 4: Simplify right side
    876,853,486.80x = 346,389,566,130,002,816
  5. Step 5: Solve for x
    x = 346,389,566,130,002,816/876,853,486.80
  6. Step 6: Final answer
    x = 395,036,994.60

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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.