Home / 131,106,698.75-180,927,216.95-72,369,348.55

Finding the Fourth Proportional to 131,106,698.75, 180,927,216.95 and 72,369,348.55

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Solution

The fourth proportional to 131,106,698.75, 180,927,216.95 and 72,369,348.55 is: 99,869,685.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,106,698.75 : 180,927,216.95 = 72,369,348.55 : x
  2. Step 2: Convert to fraction form
    131,106,698.75/180,927,216.95 = 72,369,348.55/x
  3. Step 3: Cross multiply
    131,106,698.75x = 180,927,216.95 × 72,369,348.55
  4. Step 4: Simplify right side
    131,106,698.75x = 13,093,584,824,821,852
  5. Step 5: Solve for x
    x = 13,093,584,824,821,852/131,106,698.75
  6. Step 6: Final answer
    x = 99,869,685.91

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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.