Home / 131,239,420,136.12-181,139,535,531.30-79,787,047,012.73

Finding the Fourth Proportional to 131,239,420,136.12, 181,139,535,531.30 and 79,787,047,012.73

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Solution

The fourth proportional to 131,239,420,136.12, 181,139,535,531.30 and 79,787,047,012.73 is: 110,123,837,962.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,239,420,136.12 : 181,139,535,531.30 = 79,787,047,012.73 : x
  2. Step 2: Convert to fraction form
    131,239,420,136.12/181,139,535,531.30 = 79,787,047,012.73/x
  3. Step 3: Cross multiply
    131,239,420,136.12x = 181,139,535,531.30 × 79,787,047,012.73
  4. Step 4: Simplify right side
    131,239,420,136.12x = 14,452,588,637,299,908,018,176
  5. Step 5: Solve for x
    x = 14,452,588,637,299,908,018,176/131,239,420,136.12
  6. Step 6: Final answer
    x = 110,123,837,962.02

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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.