Home / 1,285,024,903.78-1,772,681,696.57-839,249,203.61

Finding the Fourth Proportional to 1,285,024,903.78, 1,772,681,696.57 and 839,249,203.61

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Solution

The fourth proportional to 1,285,024,903.78, 1,772,681,696.57 and 839,249,203.61 is: 1,157,737,642.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,024,903.78 : 1,772,681,696.57 = 839,249,203.61 : x
  2. Step 2: Convert to fraction form
    1,285,024,903.78/1,772,681,696.57 = 839,249,203.61/x
  3. Step 3: Cross multiply
    1,285,024,903.78x = 1,772,681,696.57 × 839,249,203.61
  4. Step 4: Simplify right side
    1,285,024,903.78x = 1,487,721,702,096,199,936
  5. Step 5: Solve for x
    x = 1,487,721,702,096,199,936/1,285,024,903.78
  6. Step 6: Final answer
    x = 1,157,737,642.07

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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.