Home / 10,889,627,946.60-16,320,837,030.30-7,978,181,572.20

Finding the Fourth Proportional to 10,889,627,946.60, 16,320,837,030.30 and 7,978,181,572.20

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Solution

The fourth proportional to 10,889,627,946.60, 16,320,837,030.30 and 7,978,181,572.20 is: 11,957,304,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889,627,946.60 : 16,320,837,030.30 = 7,978,181,572.20 : x
  2. Step 2: Convert to fraction form
    10,889,627,946.60/16,320,837,030.30 = 7,978,181,572.20/x
  3. Step 3: Cross multiply
    10,889,627,946.60x = 16,320,837,030.30 × 7,978,181,572.20
  4. Step 4: Simplify right side
    10,889,627,946.60x = 130,210,601,238,018,818,048
  5. Step 5: Solve for x
    x = 130,210,601,238,018,818,048/10,889,627,946.60
  6. Step 6: Final answer
    x = 11,957,304,866.29

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1.5x scale

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.