Home / 145,720,005.60-218,831,950.80-77,695,557.60

Finding the Fourth Proportional to 145,720,005.60, 218,831,950.80 and 77,695,557.60

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Solution

The fourth proportional to 145,720,005.60, 218,831,950.80 and 77,695,557.60 is: 116,677,668.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,720,005.60 : 218,831,950.80 = 77,695,557.60 : x
  2. Step 2: Convert to fraction form
    145,720,005.60/218,831,950.80 = 77,695,557.60/x
  3. Step 3: Cross multiply
    145,720,005.60x = 218,831,950.80 × 77,695,557.60
  4. Step 4: Simplify right side
    145,720,005.60x = 17,002,270,438,101,766
  5. Step 5: Solve for x
    x = 17,002,270,438,101,766/145,720,005.60
  6. Step 6: Final answer
    x = 116,677,668.03

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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.