Home / 915,465,125.77-1,373,197,688.64-269,232,869.77

Finding the Fourth Proportional to 915,465,125.77, 1,373,197,688.64 and 269,232,869.77

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Solution

The fourth proportional to 915,465,125.77, 1,373,197,688.64 and 269,232,869.77 is: 403,849,304.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,465,125.77 : 1,373,197,688.64 = 269,232,869.77 : x
  2. Step 2: Convert to fraction form
    915,465,125.77/1,373,197,688.64 = 269,232,869.77/x
  3. Step 3: Cross multiply
    915,465,125.77x = 1,373,197,688.64 × 269,232,869.77
  4. Step 4: Simplify right side
    915,465,125.77x = 369,709,954,474,078,144
  5. Step 5: Solve for x
    x = 369,709,954,474,078,144/915,465,125.77
  6. Step 6: Final answer
    x = 403,849,304.65

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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.