Home / 472,392,483.70-708,588,725.55-426,475,981.30

Finding the Fourth Proportional to 472,392,483.70, 708,588,725.55 and 426,475,981.30

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Solution

The fourth proportional to 472,392,483.70, 708,588,725.55 and 426,475,981.30 is: 639,713,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,483.70 : 708,588,725.55 = 426,475,981.30 : x
  2. Step 2: Convert to fraction form
    472,392,483.70/708,588,725.55 = 426,475,981.30/x
  3. Step 3: Cross multiply
    472,392,483.70x = 708,588,725.55 × 426,475,981.30
  4. Step 4: Simplify right side
    472,392,483.70x = 302,196,072,067,052,608
  5. Step 5: Solve for x
    x = 302,196,072,067,052,608/472,392,483.70
  6. Step 6: Final answer
    x = 639,713,971.95

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1.5x scale

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.