Home / 77,779,286.40-116,668,929.60-76,645,545.60

Finding the Fourth Proportional to 77,779,286.40, 116,668,929.60 and 76,645,545.60

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Solution

The fourth proportional to 77,779,286.40, 116,668,929.60 and 76,645,545.60 is: 114,968,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,779,286.40 : 116,668,929.60 = 76,645,545.60 : x
  2. Step 2: Convert to fraction form
    77,779,286.40/116,668,929.60 = 76,645,545.60/x
  3. Step 3: Cross multiply
    77,779,286.40x = 116,668,929.60 × 76,645,545.60
  4. Step 4: Simplify right side
    77,779,286.40x = 8,942,153,763,759,989
  5. Step 5: Solve for x
    x = 8,942,153,763,759,989/77,779,286.40
  6. Step 6: Final answer
    x = 114,968,318.40

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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.