Home / 622,720,512-859,211,737.56-371,776,064.40

Finding the Fourth Proportional to 622,720,512, 859,211,737.56 and 371,776,064.40

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Solution

The fourth proportional to 622,720,512, 859,211,737.56 and 371,776,064.40 is: 512,965,852.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,720,512 : 859,211,737.56 = 371,776,064.40 : x
  2. Step 2: Convert to fraction form
    622,720,512/859,211,737.56 = 371,776,064.40/x
  3. Step 3: Cross multiply
    622,720,512x = 859,211,737.56 × 371,776,064.40
  4. Step 4: Simplify right side
    622,720,512x = 319,434,358,276,342,400
  5. Step 5: Solve for x
    x = 319,434,358,276,342,400/622,720,512
  6. Step 6: Final answer
    x = 512,965,852.45

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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.