Home / 78,558,977.70-117,838,466.55-49,837,544.10

Finding the Fourth Proportional to 78,558,977.70, 117,838,466.55 and 49,837,544.10

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Solution

The fourth proportional to 78,558,977.70, 117,838,466.55 and 49,837,544.10 is: 74,756,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,558,977.70 : 117,838,466.55 = 49,837,544.10 : x
  2. Step 2: Convert to fraction form
    78,558,977.70/117,838,466.55 = 49,837,544.10/x
  3. Step 3: Cross multiply
    78,558,977.70x = 117,838,466.55 × 49,837,544.10
  4. Step 4: Simplify right side
    78,558,977.70x = 5,872,779,773,362,000
  5. Step 5: Solve for x
    x = 5,872,779,773,362,000/78,558,977.70
  6. Step 6: Final answer
    x = 74,756,316.15

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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.