Home / 30,985,374.60-46,478,061.90-13,979,262.60

Finding the Fourth Proportional to 30,985,374.60, 46,478,061.90 and 13,979,262.60

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Solution

The fourth proportional to 30,985,374.60, 46,478,061.90 and 13,979,262.60 is: 20,968,893.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985,374.60 : 46,478,061.90 = 13,979,262.60 : x
  2. Step 2: Convert to fraction form
    30,985,374.60/46,478,061.90 = 13,979,262.60/x
  3. Step 3: Cross multiply
    30,985,374.60x = 46,478,061.90 × 13,979,262.60
  4. Step 4: Simplify right side
    30,985,374.60x = 649,729,032,439,154.88
  5. Step 5: Solve for x
    x = 649,729,032,439,154.88/30,985,374.60
  6. Step 6: Final answer
    x = 20,968,893.90

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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.