Home / 1,208,995,212.92-1,813,486,841.52-472,139,946.32

Finding the Fourth Proportional to 1,208,995,212.92, 1,813,486,841.52 and 472,139,946.32

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Solution

The fourth proportional to 1,208,995,212.92, 1,813,486,841.52 and 472,139,946.32 is: 708,207,584.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,995,212.92 : 1,813,486,841.52 = 472,139,946.32 : x
  2. Step 2: Convert to fraction form
    1,208,995,212.92/1,813,486,841.52 = 472,139,946.32/x
  3. Step 3: Cross multiply
    1,208,995,212.92x = 1,813,486,841.52 × 472,139,946.32
  4. Step 4: Simplify right side
    1,208,995,212.92x = 856,219,580,007,279,104
  5. Step 5: Solve for x
    x = 856,219,580,007,279,104/1,208,995,212.92
  6. Step 6: Final answer
    x = 708,207,584.99

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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.