Home / 742,304,450.40-1,113,456,675.60-257,630,258.40

Finding the Fourth Proportional to 742,304,450.40, 1,113,456,675.60 and 257,630,258.40

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Solution

The fourth proportional to 742,304,450.40, 1,113,456,675.60 and 257,630,258.40 is: 386,445,387.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,304,450.40 : 1,113,456,675.60 = 257,630,258.40 : x
  2. Step 2: Convert to fraction form
    742,304,450.40/1,113,456,675.60 = 257,630,258.40/x
  3. Step 3: Cross multiply
    742,304,450.40x = 1,113,456,675.60 × 257,630,258.40
  4. Step 4: Simplify right side
    742,304,450.40x = 286,860,131,052,032,960
  5. Step 5: Solve for x
    x = 286,860,131,052,032,960/742,304,450.40
  6. Step 6: Final answer
    x = 386,445,387.60

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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.