Home / 77,312,905.60-115,968,897.60-19,805,065.60

Finding the Fourth Proportional to 77,312,905.60, 115,968,897.60 and 19,805,065.60

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Solution

The fourth proportional to 77,312,905.60, 115,968,897.60 and 19,805,065.60 is: 29,707,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,312,905.60 : 115,968,897.60 = 19,805,065.60 : x
  2. Step 2: Convert to fraction form
    77,312,905.60/115,968,897.60 = 19,805,065.60/x
  3. Step 3: Cross multiply
    77,312,905.60x = 115,968,897.60 × 19,805,065.60
  4. Step 4: Simplify right side
    77,312,905.60x = 2,296,771,624,527,682.50
  5. Step 5: Solve for x
    x = 2,296,771,624,527,682.50/77,312,905.60
  6. Step 6: Final answer
    x = 29,707,480.36

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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.