Home / 261,134,860.70-391,688,116.02-79,367,866.94

Finding the Fourth Proportional to 261,134,860.70, 391,688,116.02 and 79,367,866.94

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Solution

The fourth proportional to 261,134,860.70, 391,688,116.02 and 79,367,866.94 is: 119,047,492.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,134,860.70 : 391,688,116.02 = 79,367,866.94 : x
  2. Step 2: Convert to fraction form
    261,134,860.70/391,688,116.02 = 79,367,866.94/x
  3. Step 3: Cross multiply
    261,134,860.70x = 391,688,116.02 × 79,367,866.94
  4. Step 4: Simplify right side
    261,134,860.70x = 31,087,450,272,296,200
  5. Step 5: Solve for x
    x = 31,087,450,272,296,200/261,134,860.70
  6. Step 6: Final answer
    x = 119,047,492.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.