Home / 78,480,273-117,686,059.02-39,594,800.64

Finding the Fourth Proportional to 78,480,273, 117,686,059.02 and 39,594,800.64

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Solution

The fourth proportional to 78,480,273, 117,686,059.02 and 39,594,800.64 is: 59,374,870.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,480,273 : 117,686,059.02 = 39,594,800.64 : x
  2. Step 2: Convert to fraction form
    78,480,273/117,686,059.02 = 39,594,800.64/x
  3. Step 3: Cross multiply
    78,480,273x = 117,686,059.02 × 39,594,800.64
  4. Step 4: Simplify right side
    78,480,273x = 4,659,756,045,004,174
  5. Step 5: Solve for x
    x = 4,659,756,045,004,174/78,480,273
  6. Step 6: Final answer
    x = 59,374,870.49

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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.