Home / 782,191,509.84-1,079,157,320.91-484,725,215.70

Finding the Fourth Proportional to 782,191,509.84, 1,079,157,320.91 and 484,725,215.70

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Solution

The fourth proportional to 782,191,509.84, 1,079,157,320.91 and 484,725,215.70 is: 668,755,360.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,191,509.84 : 1,079,157,320.91 = 484,725,215.70 : x
  2. Step 2: Convert to fraction form
    782,191,509.84/1,079,157,320.91 = 484,725,215.70/x
  3. Step 3: Cross multiply
    782,191,509.84x = 1,079,157,320.91 × 484,725,215.70
  4. Step 4: Simplify right side
    782,191,509.84x = 523,094,765,152,333,888
  5. Step 5: Solve for x
    x = 523,094,765,152,333,888/782,191,509.84
  6. Step 6: Final answer
    x = 668,755,360.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.