Home / 772,561,855.80-1,158,842,783.70-742,429,151.10

Finding the Fourth Proportional to 772,561,855.80, 1,158,842,783.70 and 742,429,151.10

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Solution

The fourth proportional to 772,561,855.80, 1,158,842,783.70 and 742,429,151.10 is: 1,113,643,726.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,561,855.80 : 1,158,842,783.70 = 742,429,151.10 : x
  2. Step 2: Convert to fraction form
    772,561,855.80/1,158,842,783.70 = 742,429,151.10/x
  3. Step 3: Cross multiply
    772,561,855.80x = 1,158,842,783.70 × 742,429,151.10
  4. Step 4: Simplify right side
    772,561,855.80x = 860,358,664,160,752,000
  5. Step 5: Solve for x
    x = 860,358,664,160,752,000/772,561,855.80
  6. Step 6: Final answer
    x = 1,113,643,726.65

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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.