Home / 309,727,780.52-427,429,772.88-168,603,058.40

Finding the Fourth Proportional to 309,727,780.52, 427,429,772.88 and 168,603,058.40

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Solution

The fourth proportional to 309,727,780.52, 427,429,772.88 and 168,603,058.40 is: 232,675,179.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,727,780.52 : 427,429,772.88 = 168,603,058.40 : x
  2. Step 2: Convert to fraction form
    309,727,780.52/427,429,772.88 = 168,603,058.40/x
  3. Step 3: Cross multiply
    309,727,780.52x = 427,429,772.88 × 168,603,058.40
  4. Step 4: Simplify right side
    309,727,780.52x = 72,065,966,958,785,376
  5. Step 5: Solve for x
    x = 72,065,966,958,785,376/309,727,780.52
  6. Step 6: Final answer
    x = 232,675,179.60

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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.