Home / 1,140,158,999.05-1,573,584,605.69-638,400,118.07

Finding the Fourth Proportional to 1,140,158,999.05, 1,573,584,605.69 and 638,400,118.07

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Solution

The fourth proportional to 1,140,158,999.05, 1,573,584,605.69 and 638,400,118.07 is: 881,084,654.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,158,999.05 : 1,573,584,605.69 = 638,400,118.07 : x
  2. Step 2: Convert to fraction form
    1,140,158,999.05/1,573,584,605.69 = 638,400,118.07/x
  3. Step 3: Cross multiply
    1,140,158,999.05x = 1,573,584,605.69 × 638,400,118.07
  4. Step 4: Simplify right side
    1,140,158,999.05x = 1,004,576,598,071,549,184
  5. Step 5: Solve for x
    x = 1,004,576,598,071,549,184/1,140,158,999.05
  6. Step 6: Final answer
    x = 881,084,654.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.