Home / 173,868,009.90-260,802,014.85-78,316,521.90

Finding the Fourth Proportional to 173,868,009.90, 260,802,014.85 and 78,316,521.90

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Solution

The fourth proportional to 173,868,009.90, 260,802,014.85 and 78,316,521.90 is: 117,474,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,868,009.90 : 260,802,014.85 = 78,316,521.90 : x
  2. Step 2: Convert to fraction form
    173,868,009.90/260,802,014.85 = 78,316,521.90/x
  3. Step 3: Cross multiply
    173,868,009.90x = 260,802,014.85 × 78,316,521.90
  4. Step 4: Simplify right side
    173,868,009.90x = 20,425,106,707,564,152
  5. Step 5: Solve for x
    x = 20,425,106,707,564,152/173,868,009.90
  6. Step 6: Final answer
    x = 117,474,782.85

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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.