Home / 1,128,535,823.16-1,692,133,124.91-429,079,158.60

Finding the Fourth Proportional to 1,128,535,823.16, 1,692,133,124.91 and 429,079,158.60

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Solution

The fourth proportional to 1,128,535,823.16, 1,692,133,124.91 and 429,079,158.60 is: 643,363,766.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,535,823.16 : 1,692,133,124.91 = 429,079,158.60 : x
  2. Step 2: Convert to fraction form
    1,128,535,823.16/1,692,133,124.91 = 429,079,158.60/x
  3. Step 3: Cross multiply
    1,128,535,823.16x = 1,692,133,124.91 × 429,079,158.60
  4. Step 4: Simplify right side
    1,128,535,823.16x = 726,059,057,467,595,520
  5. Step 5: Solve for x
    x = 726,059,057,467,595,520/1,128,535,823.16
  6. Step 6: Final answer
    x = 643,363,766.19

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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.