Home / 287,019,919.84-396,209,923.08-192,988,569.95

Finding the Fourth Proportional to 287,019,919.84, 396,209,923.08 and 192,988,569.95

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Solution

The fourth proportional to 287,019,919.84, 396,209,923.08 and 192,988,569.95 is: 266,406,549.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,019,919.84 : 396,209,923.08 = 192,988,569.95 : x
  2. Step 2: Convert to fraction form
    287,019,919.84/396,209,923.08 = 192,988,569.95/x
  3. Step 3: Cross multiply
    287,019,919.84x = 396,209,923.08 × 192,988,569.95
  4. Step 4: Simplify right side
    287,019,919.84x = 76,463,986,455,208,688
  5. Step 5: Solve for x
    x = 76,463,986,455,208,688/287,019,919.84
  6. Step 6: Final answer
    x = 266,406,549.41

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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.