Home / 1,121,278,497.80-1,681,902,000.30-507,861,739.40

Finding the Fourth Proportional to 1,121,278,497.80, 1,681,902,000.30 and 507,861,739.40

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Solution

The fourth proportional to 1,121,278,497.80, 1,681,902,000.30 and 507,861,739.40 is: 761,785,477.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,278,497.80 : 1,681,902,000.30 = 507,861,739.40 : x
  2. Step 2: Convert to fraction form
    1,121,278,497.80/1,681,902,000.30 = 507,861,739.40/x
  3. Step 3: Cross multiply
    1,121,278,497.80x = 1,681,902,000.30 × 507,861,739.40
  4. Step 4: Simplify right side
    1,121,278,497.80x = 854,173,675,372,697,216
  5. Step 5: Solve for x
    x = 854,173,675,372,697,216/1,121,278,497.80
  6. Step 6: Final answer
    x = 761,785,477.07

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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.