Home / 869,232,777.60-1,303,849,166.40-287,056,876.80

Finding the Fourth Proportional to 869,232,777.60, 1,303,849,166.40 and 287,056,876.80

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Solution

The fourth proportional to 869,232,777.60, 1,303,849,166.40 and 287,056,876.80 is: 430,585,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,232,777.60 : 1,303,849,166.40 = 287,056,876.80 : x
  2. Step 2: Convert to fraction form
    869,232,777.60/1,303,849,166.40 = 287,056,876.80/x
  3. Step 3: Cross multiply
    869,232,777.60x = 1,303,849,166.40 × 287,056,876.80
  4. Step 4: Simplify right side
    869,232,777.60x = 374,278,869,525,067,520
  5. Step 5: Solve for x
    x = 374,278,869,525,067,520/869,232,777.60
  6. Step 6: Final answer
    x = 430,585,315.20

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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.