Home / 726,813,039.40-1,090,219,559.10-290,181,113.80

Finding the Fourth Proportional to 726,813,039.40, 1,090,219,559.10 and 290,181,113.80

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Solution

The fourth proportional to 726,813,039.40, 1,090,219,559.10 and 290,181,113.80 is: 435,271,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,813,039.40 : 1,090,219,559.10 = 290,181,113.80 : x
  2. Step 2: Convert to fraction form
    726,813,039.40/1,090,219,559.10 = 290,181,113.80/x
  3. Step 3: Cross multiply
    726,813,039.40x = 1,090,219,559.10 × 290,181,113.80
  4. Step 4: Simplify right side
    726,813,039.40x = 316,361,125,946,182,912
  5. Step 5: Solve for x
    x = 316,361,125,946,182,912/726,813,039.40
  6. Step 6: Final answer
    x = 435,271,670.70

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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.