Home / 78,737,578,548.94-108,646,169,692.10-47,821,775,378.58

Finding the Fourth Proportional to 78,737,578,548.94, 108,646,169,692.10 and 47,821,775,378.58

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Solution

The fourth proportional to 78,737,578,548.94, 108,646,169,692.10 and 47,821,775,378.58 is: 65,986,950,811.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,737,578,548.94 : 108,646,169,692.10 = 47,821,775,378.58 : x
  2. Step 2: Convert to fraction form
    78,737,578,548.94/108,646,169,692.10 = 47,821,775,378.58/x
  3. Step 3: Cross multiply
    78,737,578,548.94x = 108,646,169,692.10 × 47,821,775,378.58
  4. Step 4: Simplify right side
    78,737,578,548.94x = 5,195,652,722,758,692,896,768
  5. Step 5: Solve for x
    x = 5,195,652,722,758,692,896,768/78,737,578,548.94
  6. Step 6: Final answer
    x = 65,986,950,811.92

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1.5x scale

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.