Home / 1,128,535,725.23-1,692,132,980.84-429,079,061.41

Finding the Fourth Proportional to 1,128,535,725.23, 1,692,132,980.84 and 429,079,061.41

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Solution

The fourth proportional to 1,128,535,725.23, 1,692,132,980.84 and 429,079,061.41 is: 643,363,621.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,535,725.23 : 1,692,132,980.84 = 429,079,061.41 : x
  2. Step 2: Convert to fraction form
    1,128,535,725.23/1,692,132,980.84 = 429,079,061.41/x
  3. Step 3: Cross multiply
    1,128,535,725.23x = 1,692,132,980.84 × 429,079,061.41
  4. Step 4: Simplify right side
    1,128,535,725.23x = 726,058,831,205,140,864
  5. Step 5: Solve for x
    x = 726,058,831,205,140,864/1,128,535,725.23
  6. Step 6: Final answer
    x = 643,363,621.53

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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.