Home / 78,897,271.80-118,345,907.70-36,429,943.80

Finding the Fourth Proportional to 78,897,271.80, 118,345,907.70 and 36,429,943.80

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Solution

The fourth proportional to 78,897,271.80, 118,345,907.70 and 36,429,943.80 is: 54,644,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,897,271.80 : 118,345,907.70 = 36,429,943.80 : x
  2. Step 2: Convert to fraction form
    78,897,271.80/118,345,907.70 = 36,429,943.80/x
  3. Step 3: Cross multiply
    78,897,271.80x = 118,345,907.70 × 36,429,943.80
  4. Step 4: Simplify right side
    78,897,271.80x = 4,311,334,766,470,987
  5. Step 5: Solve for x
    x = 4,311,334,766,470,987/78,897,271.80
  6. Step 6: Final answer
    x = 54,644,915.70

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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.