Home / 90,394,749.50-124,739,457.10-49,141,281.02

Finding the Fourth Proportional to 90,394,749.50, 124,739,457.10 and 49,141,281.02

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Solution

The fourth proportional to 90,394,749.50, 124,739,457.10 and 49,141,281.02 is: 67,812,088.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,394,749.50 : 124,739,457.10 = 49,141,281.02 : x
  2. Step 2: Convert to fraction form
    90,394,749.50/124,739,457.10 = 49,141,281.02/x
  3. Step 3: Cross multiply
    90,394,749.50x = 124,739,457.10 × 49,141,281.02
  4. Step 4: Simplify right side
    90,394,749.50x = 6,129,856,714,886,784
  5. Step 5: Solve for x
    x = 6,129,856,714,886,784/90,394,749.50
  6. Step 6: Final answer
    x = 67,812,088.08

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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.