Home / 78,732,145.80-118,098,218.70-35,685,424.80

Finding the Fourth Proportional to 78,732,145.80, 118,098,218.70 and 35,685,424.80

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Solution

The fourth proportional to 78,732,145.80, 118,098,218.70 and 35,685,424.80 is: 53,528,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,145.80 : 118,098,218.70 = 35,685,424.80 : x
  2. Step 2: Convert to fraction form
    78,732,145.80/118,098,218.70 = 35,685,424.80/x
  3. Step 3: Cross multiply
    78,732,145.80x = 118,098,218.70 × 35,685,424.80
  4. Step 4: Simplify right side
    78,732,145.80x = 4,214,385,102,432,803.50
  5. Step 5: Solve for x
    x = 4,214,385,102,432,803.50/78,732,145.80
  6. Step 6: Final answer
    x = 53,528,137.20

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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.