Home / 2,912,820,752.20-4,370,742,782.70-1,277,210,691.40

Finding the Fourth Proportional to 2,912,820,752.20, 4,370,742,782.70 and 1,277,210,691.40

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Solution

The fourth proportional to 2,912,820,752.20, 4,370,742,782.70 and 1,277,210,691.40 is: 1,916,478,865.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,912,820,752.20 : 4,370,742,782.70 = 1,277,210,691.40 : x
  2. Step 2: Convert to fraction form
    2,912,820,752.20/4,370,742,782.70 = 1,277,210,691.40/x
  3. Step 3: Cross multiply
    2,912,820,752.20x = 4,370,742,782.70 × 1,277,210,691.40
  4. Step 4: Simplify right side
    2,912,820,752.20x = 5,582,359,411,423,826,944
  5. Step 5: Solve for x
    x = 5,582,359,411,423,826,944/2,912,820,752.20
  6. Step 6: Final answer
    x = 1,916,478,865.79

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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.