Home / 99,678,867.60-149,518,301.40-70,768,477.20

Finding the Fourth Proportional to 99,678,867.60, 149,518,301.40 and 70,768,477.20

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Solution

The fourth proportional to 99,678,867.60, 149,518,301.40 and 70,768,477.20 is: 106,152,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,678,867.60 : 149,518,301.40 = 70,768,477.20 : x
  2. Step 2: Convert to fraction form
    99,678,867.60/149,518,301.40 = 70,768,477.20/x
  3. Step 3: Cross multiply
    99,678,867.60x = 149,518,301.40 × 70,768,477.20
  4. Step 4: Simplify right side
    99,678,867.60x = 10,581,182,503,608,628
  5. Step 5: Solve for x
    x = 10,581,182,503,608,628/99,678,867.60
  6. Step 6: Final answer
    x = 106,152,715.80

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1.5x scale

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.