Home / 173,868,390.40-260,802,585.60-78,316,902.40

Finding the Fourth Proportional to 173,868,390.40, 260,802,585.60 and 78,316,902.40

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Solution

The fourth proportional to 173,868,390.40, 260,802,585.60 and 78,316,902.40 is: 117,475,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,868,390.40 : 260,802,585.60 = 78,316,902.40 : x
  2. Step 2: Convert to fraction form
    173,868,390.40/260,802,585.60 = 78,316,902.40/x
  3. Step 3: Cross multiply
    173,868,390.40x = 260,802,585.60 × 78,316,902.40
  4. Step 4: Simplify right side
    173,868,390.40x = 20,425,250,642,102,848
  5. Step 5: Solve for x
    x = 20,425,250,642,102,848/173,868,390.40
  6. Step 6: Final answer
    x = 117,475,353.60

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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.