Home / 520,273,456.29-780,334,218.99-151,709,368.77

Finding the Fourth Proportional to 520,273,456.29, 780,334,218.99 and 151,709,368.77

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Solution

The fourth proportional to 520,273,456.29, 780,334,218.99 and 151,709,368.77 is: 227,541,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,273,456.29 : 780,334,218.99 = 151,709,368.77 : x
  2. Step 2: Convert to fraction form
    520,273,456.29/780,334,218.99 = 151,709,368.77/x
  3. Step 3: Cross multiply
    520,273,456.29x = 780,334,218.99 × 151,709,368.77
  4. Step 4: Simplify right side
    520,273,456.29x = 118,384,011,792,603,856
  5. Step 5: Solve for x
    x = 118,384,011,792,603,856/520,273,456.29
  6. Step 6: Final answer
    x = 227,541,901.98

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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.