Home / 501,456,792-692,010,369.72-281,440,218

Finding the Fourth Proportional to 501,456,792, 692,010,369.72 and 281,440,218

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Solution

The fourth proportional to 501,456,792, 692,010,369.72 and 281,440,218 is: 388,387,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,456,792 : 692,010,369.72 = 281,440,218 : x
  2. Step 2: Convert to fraction form
    501,456,792/692,010,369.72 = 281,440,218/x
  3. Step 3: Cross multiply
    501,456,792x = 692,010,369.72 × 281,440,218
  4. Step 4: Simplify right side
    501,456,792x = 194,759,549,312,257,408
  5. Step 5: Solve for x
    x = 194,759,549,312,257,408/501,456,792
  6. Step 6: Final answer
    x = 388,387,499.02

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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.