Home / 280,908,000.90-421,362,001.35-189,074,996.10

Finding the Fourth Proportional to 280,908,000.90, 421,362,001.35 and 189,074,996.10

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Solution

The fourth proportional to 280,908,000.90, 421,362,001.35 and 189,074,996.10 is: 283,612,494.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,908,000.90 : 421,362,001.35 = 189,074,996.10 : x
  2. Step 2: Convert to fraction form
    280,908,000.90/421,362,001.35 = 189,074,996.10/x
  3. Step 3: Cross multiply
    280,908,000.90x = 421,362,001.35 × 189,074,996.10
  4. Step 4: Simplify right side
    280,908,000.90x = 79,669,018,761,939,440
  5. Step 5: Solve for x
    x = 79,669,018,761,939,440/280,908,000.90
  6. Step 6: Final answer
    x = 283,612,494.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.