Home / 505,007,715.84-697,391,963.40-477,495,211.92

Finding the Fourth Proportional to 505,007,715.84, 697,391,963.40 and 477,495,211.92

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Solution

The fourth proportional to 505,007,715.84, 697,391,963.40 and 477,495,211.92 is: 659,398,486.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,007,715.84 : 697,391,963.40 = 477,495,211.92 : x
  2. Step 2: Convert to fraction form
    505,007,715.84/697,391,963.40 = 477,495,211.92/x
  3. Step 3: Cross multiply
    505,007,715.84x = 697,391,963.40 × 477,495,211.92
  4. Step 4: Simplify right side
    505,007,715.84x = 333,001,323,354,987,904
  5. Step 5: Solve for x
    x = 333,001,323,354,987,904/505,007,715.84
  6. Step 6: Final answer
    x = 659,398,486.22

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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.