Home / 310,392,025.80-465,420,077.10-128,657,574.60

Finding the Fourth Proportional to 310,392,025.80, 465,420,077.10 and 128,657,574.60

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Solution

The fourth proportional to 310,392,025.80, 465,420,077.10 and 128,657,574.60 is: 192,916,741.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,392,025.80 : 465,420,077.10 = 128,657,574.60 : x
  2. Step 2: Convert to fraction form
    310,392,025.80/465,420,077.10 = 128,657,574.60/x
  3. Step 3: Cross multiply
    310,392,025.80x = 465,420,077.10 × 128,657,574.60
  4. Step 4: Simplify right side
    310,392,025.80x = 59,879,818,289,831,000
  5. Step 5: Solve for x
    x = 59,879,818,289,831,000/310,392,025.80
  6. Step 6: Final answer
    x = 192,916,741.77

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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.