Home / 429,512,656.51-644,264,868.16-254,509,717.65

Finding the Fourth Proportional to 429,512,656.51, 644,264,868.16 and 254,509,717.65

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Solution

The fourth proportional to 429,512,656.51, 644,264,868.16 and 254,509,717.65 is: 381,762,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,512,656.51 : 644,264,868.16 = 254,509,717.65 : x
  2. Step 2: Convert to fraction form
    429,512,656.51/644,264,868.16 = 254,509,717.65/x
  3. Step 3: Cross multiply
    429,512,656.51x = 644,264,868.16 × 254,509,717.65
  4. Step 4: Simplify right side
    429,512,656.51x = 163,971,669,685,118,208
  5. Step 5: Solve for x
    x = 163,971,669,685,118,208/429,512,656.51
  6. Step 6: Final answer
    x = 381,762,137.16

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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.