Home / 312,804,915.70-469,065,655.95-118,651,803.70

Finding the Fourth Proportional to 312,804,915.70, 469,065,655.95 and 118,651,803.70

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Solution

The fourth proportional to 312,804,915.70, 469,065,655.95 and 118,651,803.70 is: 177,923,949.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,804,915.70 : 469,065,655.95 = 118,651,803.70 : x
  2. Step 2: Convert to fraction form
    312,804,915.70/469,065,655.95 = 118,651,803.70/x
  3. Step 3: Cross multiply
    312,804,915.70x = 469,065,655.95 × 118,651,803.70
  4. Step 4: Simplify right side
    312,804,915.70x = 55,655,486,132,191,136
  5. Step 5: Solve for x
    x = 55,655,486,132,191,136/312,804,915.70
  6. Step 6: Final answer
    x = 177,923,949.84

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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.