Home / 286,156,492,928-394,884,463,074.80-155,942,582,435.76

Finding the Fourth Proportional to 286,156,492,928, 394,884,463,074.80 and 155,942,582,435.76

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Solution

The fourth proportional to 286,156,492,928, 394,884,463,074.80 and 155,942,582,435.76 is: 215,194,498,316.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,156,492,928 : 394,884,463,074.80 = 155,942,582,435.76 : x
  2. Step 2: Convert to fraction form
    286,156,492,928/394,884,463,074.80 = 155,942,582,435.76/x
  3. Step 3: Cross multiply
    286,156,492,928x = 394,884,463,074.80 × 155,942,582,435.76
  4. Step 4: Simplify right side
    286,156,492,928x = 61,579,302,935,642,830,274,560
  5. Step 5: Solve for x
    x = 61,579,302,935,642,830,274,560/286,156,492,928
  6. Step 6: Final answer
    x = 215,194,498,316.48

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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.