Home / 281,037,692.22-387,832,109.12-153,886,412.54

Finding the Fourth Proportional to 281,037,692.22, 387,832,109.12 and 153,886,412.54

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Solution

The fourth proportional to 281,037,692.22, 387,832,109.12 and 153,886,412.54 is: 212,363,300.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,037,692.22 : 387,832,109.12 = 153,886,412.54 : x
  2. Step 2: Convert to fraction form
    281,037,692.22/387,832,109.12 = 153,886,412.54/x
  3. Step 3: Cross multiply
    281,037,692.22x = 387,832,109.12 × 153,886,412.54
  4. Step 4: Simplify right side
    281,037,692.22x = 59,682,091,937,590,024
  5. Step 5: Solve for x
    x = 59,682,091,937,590,024/281,037,692.22
  6. Step 6: Final answer
    x = 212,363,300.69

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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.