Home / 378,477,942,312.45-567,718,369,129.50-91,635,520,935.91

Finding the Fourth Proportional to 378,477,942,312.45, 567,718,369,129.50 and 91,635,520,935.91

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Solution

The fourth proportional to 378,477,942,312.45, 567,718,369,129.50 and 91,635,520,935.91 is: 137,453,633,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,477,942,312.45 : 567,718,369,129.50 = 91,635,520,935.91 : x
  2. Step 2: Convert to fraction form
    378,477,942,312.45/567,718,369,129.50 = 91,635,520,935.91/x
  3. Step 3: Cross multiply
    378,477,942,312.45x = 567,718,369,129.50 × 91,635,520,935.91
  4. Step 4: Simplify right side
    378,477,942,312.45x = 52,023,168,500,066,980,724,736
  5. Step 5: Solve for x
    x = 52,023,168,500,066,980,724,736/378,477,942,312.45
  6. Step 6: Final answer
    x = 137,453,633,842.47

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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.