Home / 1,290,277,656.20-1,935,668,426.70-513,791,179.40

Finding the Fourth Proportional to 1,290,277,656.20, 1,935,668,426.70 and 513,791,179.40

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Solution

The fourth proportional to 1,290,277,656.20, 1,935,668,426.70 and 513,791,179.40 is: 770,787,093.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,277,656.20 : 1,935,668,426.70 = 513,791,179.40 : x
  2. Step 2: Convert to fraction form
    1,290,277,656.20/1,935,668,426.70 = 513,791,179.40/x
  3. Step 3: Cross multiply
    1,290,277,656.20x = 1,935,668,426.70 × 513,791,179.40
  4. Step 4: Simplify right side
    1,290,277,656.20x = 994,529,363,881,535,488
  5. Step 5: Solve for x
    x = 994,529,363,881,535,488/1,290,277,656.20
  6. Step 6: Final answer
    x = 770,787,093.07

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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.