Home / 434,599,712.80-651,899,569.20-143,511,762.40

Finding the Fourth Proportional to 434,599,712.80, 651,899,569.20 and 143,511,762.40

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Solution

The fourth proportional to 434,599,712.80, 651,899,569.20 and 143,511,762.40 is: 215,267,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,599,712.80 : 651,899,569.20 = 143,511,762.40 : x
  2. Step 2: Convert to fraction form
    434,599,712.80/651,899,569.20 = 143,511,762.40/x
  3. Step 3: Cross multiply
    434,599,712.80x = 651,899,569.20 × 143,511,762.40
  4. Step 4: Simplify right side
    434,599,712.80x = 93,555,256,083,692,768
  5. Step 5: Solve for x
    x = 93,555,256,083,692,768/434,599,712.80
  6. Step 6: Final answer
    x = 215,267,643.60

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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.