Home / 905,914,710.18-1,358,858,391.21-407,573,312.49

Finding the Fourth Proportional to 905,914,710.18, 1,358,858,391.21 and 407,573,312.49

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Solution

The fourth proportional to 905,914,710.18, 1,358,858,391.21 and 407,573,312.49 is: 611,353,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,914,710.18 : 1,358,858,391.21 = 407,573,312.49 : x
  2. Step 2: Convert to fraction form
    905,914,710.18/1,358,858,391.21 = 407,573,312.49/x
  3. Step 3: Cross multiply
    905,914,710.18x = 1,358,858,391.21 × 407,573,312.49
  4. Step 4: Simplify right side
    905,914,710.18x = 553,834,415,710,292,032
  5. Step 5: Solve for x
    x = 553,834,415,710,292,032/905,914,710.18
  6. Step 6: Final answer
    x = 611,353,816.74

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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.