Home / 72,301,395.28-99,775,562.88-39,261,349.32

Finding the Fourth Proportional to 72,301,395.28, 99,775,562.88 and 39,261,349.32

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Solution

The fourth proportional to 72,301,395.28, 99,775,562.88 and 39,261,349.32 is: 54,180,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,301,395.28 : 99,775,562.88 = 39,261,349.32 : x
  2. Step 2: Convert to fraction form
    72,301,395.28/99,775,562.88 = 39,261,349.32/x
  3. Step 3: Cross multiply
    72,301,395.28x = 99,775,562.88 × 39,261,349.32
  4. Step 4: Simplify right side
    72,301,395.28x = 3,917,323,227,831,305
  5. Step 5: Solve for x
    x = 3,917,323,227,831,305/72,301,395.28
  6. Step 6: Final answer
    x = 54,180,465.16

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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.