Home / 72,001,431.96-99,362,239.44-38,961,681.32

Finding the Fourth Proportional to 72,001,431.96, 99,362,239.44 and 38,961,681.32

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Solution

The fourth proportional to 72,001,431.96, 99,362,239.44 and 38,961,681.32 is: 53,767,262.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,001,431.96 : 99,362,239.44 = 38,961,681.32 : x
  2. Step 2: Convert to fraction form
    72,001,431.96/99,362,239.44 = 38,961,681.32/x
  3. Step 3: Cross multiply
    72,001,431.96x = 99,362,239.44 × 38,961,681.32
  4. Step 4: Simplify right side
    72,001,431.96x = 3,871,319,908,302,815
  5. Step 5: Solve for x
    x = 3,871,319,908,302,815/72,001,431.96
  6. Step 6: Final answer
    x = 53,767,262.72

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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.