Home / 288,742,911.20-433,177,352.40-84,254,328.80

Finding the Fourth Proportional to 288,742,911.20, 433,177,352.40 and 84,254,328.80

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Solution

The fourth proportional to 288,742,911.20, 433,177,352.40 and 84,254,328.80 is: 126,399,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,742,911.20 : 433,177,352.40 = 84,254,328.80 : x
  2. Step 2: Convert to fraction form
    288,742,911.20/433,177,352.40 = 84,254,328.80/x
  3. Step 3: Cross multiply
    288,742,911.20x = 433,177,352.40 × 84,254,328.80
  4. Step 4: Simplify right side
    288,742,911.20x = 36,497,067,077,823,064
  5. Step 5: Solve for x
    x = 36,497,067,077,823,064/288,742,911.20
  6. Step 6: Final answer
    x = 126,399,872.21

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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.