Home / 916,282,238.15-1,374,846,055.35-418,445,368.41

Finding the Fourth Proportional to 916,282,238.15, 1,374,846,055.35 and 418,445,368.41

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Solution

The fourth proportional to 916,282,238.15, 1,374,846,055.35 and 418,445,368.41 is: 627,861,089.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,282,238.15 : 1,374,846,055.35 = 418,445,368.41 : x
  2. Step 2: Convert to fraction form
    916,282,238.15/1,374,846,055.35 = 418,445,368.41/x
  3. Step 3: Cross multiply
    916,282,238.15x = 1,374,846,055.35 × 418,445,368.41
  4. Step 4: Simplify right side
    916,282,238.15x = 575,297,964,137,966,016
  5. Step 5: Solve for x
    x = 575,297,964,137,966,016/916,282,238.15
  6. Step 6: Final answer
    x = 627,861,089.28

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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.