Home / 742,304,451.40-1,113,456,677.10-257,630,259.40

Finding the Fourth Proportional to 742,304,451.40, 1,113,456,677.10 and 257,630,259.40

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Solution

The fourth proportional to 742,304,451.40, 1,113,456,677.10 and 257,630,259.40 is: 386,445,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,304,451.40 : 1,113,456,677.10 = 257,630,259.40 : x
  2. Step 2: Convert to fraction form
    742,304,451.40/1,113,456,677.10 = 257,630,259.40/x
  3. Step 3: Cross multiply
    742,304,451.40x = 1,113,456,677.10 × 257,630,259.40
  4. Step 4: Simplify right side
    742,304,451.40x = 286,860,132,551,935,008
  5. Step 5: Solve for x
    x = 286,860,132,551,935,008/742,304,451.40
  6. Step 6: Final answer
    x = 386,445,389.10

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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.