Home / 472,395,557.20-708,593,335.80-342,298,800.40

Finding the Fourth Proportional to 472,395,557.20, 708,593,335.80 and 342,298,800.40

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Solution

The fourth proportional to 472,395,557.20, 708,593,335.80 and 342,298,800.40 is: 513,448,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,395,557.20 : 708,593,335.80 = 342,298,800.40 : x
  2. Step 2: Convert to fraction form
    472,395,557.20/708,593,335.80 = 342,298,800.40/x
  3. Step 3: Cross multiply
    472,395,557.20x = 708,593,335.80 × 342,298,800.40
  4. Step 4: Simplify right side
    472,395,557.20x = 242,550,648,815,774,336
  5. Step 5: Solve for x
    x = 242,550,648,815,774,336/472,395,557.20
  6. Step 6: Final answer
    x = 513,448,200.60

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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.