Home / 98,779,974.80-147,918,019.80-78,624,582.80

Finding the Fourth Proportional to 98,779,974.80, 147,918,019.80 and 78,624,582.80

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Solution

The fourth proportional to 98,779,974.80, 147,918,019.80 and 78,624,582.80 is: 117,736,338.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,779,974.80 : 147,918,019.80 = 78,624,582.80 : x
  2. Step 2: Convert to fraction form
    98,779,974.80/147,918,019.80 = 78,624,582.80/x
  3. Step 3: Cross multiply
    98,779,974.80x = 147,918,019.80 × 78,624,582.80
  4. Step 4: Simplify right side
    98,779,974.80x = 11,629,992,595,377,140
  5. Step 5: Solve for x
    x = 11,629,992,595,377,140/98,779,974.80
  6. Step 6: Final answer
    x = 117,736,338.96

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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.