Home / 105,870,277.60-158,805,416.40-78,996,421.60

Finding the Fourth Proportional to 105,870,277.60, 158,805,416.40 and 78,996,421.60

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Solution

The fourth proportional to 105,870,277.60, 158,805,416.40 and 78,996,421.60 is: 118,494,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,870,277.60 : 158,805,416.40 = 78,996,421.60 : x
  2. Step 2: Convert to fraction form
    105,870,277.60/158,805,416.40 = 78,996,421.60/x
  3. Step 3: Cross multiply
    105,870,277.60x = 158,805,416.40 × 78,996,421.60
  4. Step 4: Simplify right side
    105,870,277.60x = 12,545,059,626,297,954
  5. Step 5: Solve for x
    x = 12,545,059,626,297,954/105,870,277.60
  6. Step 6: Final answer
    x = 118,494,632.40

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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.