Home / 666,230,737.13-919,427,142.88-368,872,969.98

Finding the Fourth Proportional to 666,230,737.13, 919,427,142.88 and 368,872,969.98

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Solution

The fourth proportional to 666,230,737.13, 919,427,142.88 and 368,872,969.98 is: 509,060,603.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,230,737.13 : 919,427,142.88 = 368,872,969.98 : x
  2. Step 2: Convert to fraction form
    666,230,737.13/919,427,142.88 = 368,872,969.98/x
  3. Step 3: Cross multiply
    666,230,737.13x = 919,427,142.88 × 368,872,969.98
  4. Step 4: Simplify right side
    666,230,737.13x = 339,151,820,878,280,320
  5. Step 5: Solve for x
    x = 339,151,820,878,280,320/666,230,737.13
  6. Step 6: Final answer
    x = 509,060,603.15

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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.