Home / 54,453,618.60-81,680,427.90-42,124,187.40

Finding the Fourth Proportional to 54,453,618.60, 81,680,427.90 and 42,124,187.40

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Solution

The fourth proportional to 54,453,618.60, 81,680,427.90 and 42,124,187.40 is: 63,186,281.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,453,618.60 : 81,680,427.90 = 42,124,187.40 : x
  2. Step 2: Convert to fraction form
    54,453,618.60/81,680,427.90 = 42,124,187.40/x
  3. Step 3: Cross multiply
    54,453,618.60x = 81,680,427.90 × 42,124,187.40
  4. Step 4: Simplify right side
    54,453,618.60x = 3,440,721,651,771,788.50
  5. Step 5: Solve for x
    x = 3,440,721,651,771,788.50/54,453,618.60
  6. Step 6: Final answer
    x = 63,186,281.10

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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.