Home / 78,894,687.10-118,286,043.45-30,353,784.70

Finding the Fourth Proportional to 78,894,687.10, 118,286,043.45 and 30,353,784.70

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Solution

The fourth proportional to 78,894,687.10, 118,286,043.45 and 30,353,784.70 is: 45,509,136.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,894,687.10 : 118,286,043.45 = 30,353,784.70 : x
  2. Step 2: Convert to fraction form
    78,894,687.10/118,286,043.45 = 30,353,784.70/x
  3. Step 3: Cross multiply
    78,894,687.10x = 118,286,043.45 × 30,353,784.70
  4. Step 4: Simplify right side
    78,894,687.10x = 3,590,429,095,896,145
  5. Step 5: Solve for x
    x = 3,590,429,095,896,145/78,894,687.10
  6. Step 6: Final answer
    x = 45,509,136.65

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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.