Home / 562,720,758.15-776,559,205.79-311,829,340.82

Finding the Fourth Proportional to 562,720,758.15, 776,559,205.79 and 311,829,340.82

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Solution

The fourth proportional to 562,720,758.15, 776,559,205.79 and 311,829,340.82 is: 430,327,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,720,758.15 : 776,559,205.79 = 311,829,340.82 : x
  2. Step 2: Convert to fraction form
    562,720,758.15/776,559,205.79 = 311,829,340.82/x
  3. Step 3: Cross multiply
    562,720,758.15x = 776,559,205.79 × 311,829,340.82
  4. Step 4: Simplify right side
    562,720,758.15x = 242,153,945,243,756,480
  5. Step 5: Solve for x
    x = 242,153,945,243,756,480/562,720,758.15
  6. Step 6: Final answer
    x = 430,327,016.97

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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.