Home / 733,680,972.79-1,012,484,145.47-399,155,894.96

Finding the Fourth Proportional to 733,680,972.79, 1,012,484,145.47 and 399,155,894.96

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Solution

The fourth proportional to 733,680,972.79, 1,012,484,145.47 and 399,155,894.96 is: 550,837,530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    733,680,972.79 : 1,012,484,145.47 = 399,155,894.96 : x
  2. Step 2: Convert to fraction form
    733,680,972.79/1,012,484,145.47 = 399,155,894.96/x
  3. Step 3: Cross multiply
    733,680,972.79x = 1,012,484,145.47 × 399,155,894.96
  4. Step 4: Simplify right side
    733,680,972.79x = 404,139,015,210,830,464
  5. Step 5: Solve for x
    x = 404,139,015,210,830,464/733,680,972.79
  6. Step 6: Final answer
    x = 550,837,530.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.