Home / 803,837,103.60-1,205,755,655.40-258,578,637.60

Finding the Fourth Proportional to 803,837,103.60, 1,205,755,655.40 and 258,578,637.60

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Solution

The fourth proportional to 803,837,103.60, 1,205,755,655.40 and 258,578,637.60 is: 387,867,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,837,103.60 : 1,205,755,655.40 = 258,578,637.60 : x
  2. Step 2: Convert to fraction form
    803,837,103.60/1,205,755,655.40 = 258,578,637.60/x
  3. Step 3: Cross multiply
    803,837,103.60x = 1,205,755,655.40 × 258,578,637.60
  4. Step 4: Simplify right side
    803,837,103.60x = 311,782,654,651,827,072
  5. Step 5: Solve for x
    x = 311,782,654,651,827,072/803,837,103.60
  6. Step 6: Final answer
    x = 387,867,956.40

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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.