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Finding the Fourth Proportional to 64,903,559.70, 97,355,339.55 and 18,845,339.70

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Solution

The fourth proportional to 64,903,559.70, 97,355,339.55 and 18,845,339.70 is: 28,268,009.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,903,559.70 : 97,355,339.55 = 18,845,339.70 : x
  2. Step 2: Convert to fraction form
    64,903,559.70/97,355,339.55 = 18,845,339.70/x
  3. Step 3: Cross multiply
    64,903,559.70x = 97,355,339.55 × 18,845,339.70
  4. Step 4: Simplify right side
    64,903,559.70x = 1,834,694,445,428,595
  5. Step 5: Solve for x
    x = 1,834,694,445,428,595/64,903,559.70
  6. Step 6: Final answer
    x = 28,268,009.55

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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.