Home / 128,897,484,226.23-177,887,929,635.67-74,718,020,241.21

Finding the Fourth Proportional to 128,897,484,226.23, 177,887,929,635.67 and 74,718,020,241.21

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Solution

The fourth proportional to 128,897,484,226.23, 177,887,929,635.67 and 74,718,020,241.21 is: 103,116,317,645.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,897,484,226.23 : 177,887,929,635.67 = 74,718,020,241.21 : x
  2. Step 2: Convert to fraction form
    128,897,484,226.23/177,887,929,635.67 = 74,718,020,241.21/x
  3. Step 3: Cross multiply
    128,897,484,226.23x = 177,887,929,635.67 × 74,718,020,241.21
  4. Step 4: Simplify right side
    128,897,484,226.23x = 13,291,433,927,184,933,191,680
  5. Step 5: Solve for x
    x = 13,291,433,927,184,933,191,680/128,897,484,226.23
  6. Step 6: Final answer
    x = 103,116,317,645.56

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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.