Home / 1,249,863,357.60-1,873,482,652.32-420,529,096.80

Finding the Fourth Proportional to 1,249,863,357.60, 1,873,482,652.32 and 420,529,096.80

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Solution

The fourth proportional to 1,249,863,357.60, 1,873,482,652.32 and 420,529,096.80 is: 630,352,080.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,863,357.60 : 1,873,482,652.32 = 420,529,096.80 : x
  2. Step 2: Convert to fraction form
    1,249,863,357.60/1,873,482,652.32 = 420,529,096.80/x
  3. Step 3: Cross multiply
    1,249,863,357.60x = 1,873,482,652.32 × 420,529,096.80
  4. Step 4: Simplify right side
    1,249,863,357.60x = 787,853,967,650,598,016
  5. Step 5: Solve for x
    x = 787,853,967,650,598,016/1,249,863,357.60
  6. Step 6: Final answer
    x = 630,352,080.38

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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.