Home / 77,064,297.60-115,596,446.40-31,658,678.40

Finding the Fourth Proportional to 77,064,297.60, 115,596,446.40 and 31,658,678.40

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Solution

The fourth proportional to 77,064,297.60, 115,596,446.40 and 31,658,678.40 is: 47,488,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,064,297.60 : 115,596,446.40 = 31,658,678.40 : x
  2. Step 2: Convert to fraction form
    77,064,297.60/115,596,446.40 = 31,658,678.40/x
  3. Step 3: Cross multiply
    77,064,297.60x = 115,596,446.40 × 31,658,678.40
  4. Step 4: Simplify right side
    77,064,297.60x = 3,659,630,720,760,438
  5. Step 5: Solve for x
    x = 3,659,630,720,760,438/77,064,297.60
  6. Step 6: Final answer
    x = 47,488,017.60

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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.