Home / 127,680,211.40-191,520,317.10-87,369,427.40

Finding the Fourth Proportional to 127,680,211.40, 191,520,317.10 and 87,369,427.40

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Solution

The fourth proportional to 127,680,211.40, 191,520,317.10 and 87,369,427.40 is: 131,054,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,680,211.40 : 191,520,317.10 = 87,369,427.40 : x
  2. Step 2: Convert to fraction form
    127,680,211.40/191,520,317.10 = 87,369,427.40/x
  3. Step 3: Cross multiply
    127,680,211.40x = 191,520,317.10 × 87,369,427.40
  4. Step 4: Simplify right side
    127,680,211.40x = 16,733,020,440,493,430
  5. Step 5: Solve for x
    x = 16,733,020,440,493,430/127,680,211.40
  6. Step 6: Final answer
    x = 131,054,141.10

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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.