Home / 1,238,493,701.40-1,857,740,552.10-420,606,002.40

Finding the Fourth Proportional to 1,238,493,701.40, 1,857,740,552.10 and 420,606,002.40

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Solution

The fourth proportional to 1,238,493,701.40, 1,857,740,552.10 and 420,606,002.40 is: 630,909,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,493,701.40 : 1,857,740,552.10 = 420,606,002.40 : x
  2. Step 2: Convert to fraction form
    1,238,493,701.40/1,857,740,552.10 = 420,606,002.40/x
  3. Step 3: Cross multiply
    1,238,493,701.40x = 1,857,740,552.10 × 420,606,002.40
  4. Step 4: Simplify right side
    1,238,493,701.40x = 781,376,827,115,149,824
  5. Step 5: Solve for x
    x = 781,376,827,115,149,824/1,238,493,701.40
  6. Step 6: Final answer
    x = 630,909,003.60

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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.