Home / 840,121,064.96-1,159,385,628.60-463,776,761.36

Finding the Fourth Proportional to 840,121,064.96, 1,159,385,628.60 and 463,776,761.36

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Solution

The fourth proportional to 840,121,064.96, 1,159,385,628.60 and 463,776,761.36 is: 640,022,175.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,121,064.96 : 1,159,385,628.60 = 463,776,761.36 : x
  2. Step 2: Convert to fraction form
    840,121,064.96/1,159,385,628.60 = 463,776,761.36/x
  3. Step 3: Cross multiply
    840,121,064.96x = 1,159,385,628.60 × 463,776,761.36
  4. Step 4: Simplify right side
    840,121,064.96x = 537,696,111,999,435,776
  5. Step 5: Solve for x
    x = 537,696,111,999,435,776/840,121,064.96
  6. Step 6: Final answer
    x = 640,022,175.88

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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.