Home / 72,372,820.84-99,875,264.08-39,333,071.68

Finding the Fourth Proportional to 72,372,820.84, 99,875,264.08 and 39,333,071.68

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Solution

The fourth proportional to 72,372,820.84, 99,875,264.08 and 39,333,071.68 is: 54,280,058.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,372,820.84 : 99,875,264.08 = 39,333,071.68 : x
  2. Step 2: Convert to fraction form
    72,372,820.84/99,875,264.08 = 39,333,071.68/x
  3. Step 3: Cross multiply
    72,372,820.84x = 99,875,264.08 × 39,333,071.68
  4. Step 4: Simplify right side
    72,372,820.84x = 3,928,400,920,732,654.50
  5. Step 5: Solve for x
    x = 3,928,400,920,732,654.50/72,372,820.84
  6. Step 6: Final answer
    x = 54,280,058.11

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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.