Home / 90,578,984.95-124,982,394.58-53,420,892.67

Finding the Fourth Proportional to 90,578,984.95, 124,982,394.58 and 53,420,892.67

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Solution

The fourth proportional to 90,578,984.95, 124,982,394.58 and 53,420,892.67 is: 73,711,038.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,578,984.95 : 124,982,394.58 = 53,420,892.67 : x
  2. Step 2: Convert to fraction form
    90,578,984.95/124,982,394.58 = 53,420,892.67/x
  3. Step 3: Cross multiply
    90,578,984.95x = 124,982,394.58 × 53,420,892.67
  4. Step 4: Simplify right side
    90,578,984.95x = 6,676,671,086,497,770
  5. Step 5: Solve for x
    x = 6,676,671,086,497,770/90,578,984.95
  6. Step 6: Final answer
    x = 73,711,038.94

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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.