Home / 99,997,461-138,001,856.54-55,941,832.35

Finding the Fourth Proportional to 99,997,461, 138,001,856.54 and 55,941,832.35

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Solution

The fourth proportional to 99,997,461, 138,001,856.54 and 55,941,832.35 is: 77,202,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,997,461 : 138,001,856.54 = 55,941,832.35 : x
  2. Step 2: Convert to fraction form
    99,997,461/138,001,856.54 = 55,941,832.35/x
  3. Step 3: Cross multiply
    99,997,461x = 138,001,856.54 × 55,941,832.35
  4. Step 4: Simplify right side
    99,997,461x = 7,720,076,722,549,431
  5. Step 5: Solve for x
    x = 7,720,076,722,549,431/99,997,461
  6. Step 6: Final answer
    x = 77,202,727.40

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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.