Home / 239,589,781,126.52-359,406,764,682.86-78,242,033,521.77

Finding the Fourth Proportional to 239,589,781,126.52, 359,406,764,682.86 and 78,242,033,521.77

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Solution

The fourth proportional to 239,589,781,126.52, 359,406,764,682.86 and 78,242,033,521.77 is: 117,370,265,117.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,589,781,126.52 : 359,406,764,682.86 = 78,242,033,521.77 : x
  2. Step 2: Convert to fraction form
    239,589,781,126.52/359,406,764,682.86 = 78,242,033,521.77/x
  3. Step 3: Cross multiply
    239,589,781,126.52x = 359,406,764,682.86 × 78,242,033,521.77
  4. Step 4: Simplify right side
    239,589,781,126.52x = 28,120,716,130,267,233,779,712
  5. Step 5: Solve for x
    x = 28,120,716,130,267,233,779,712/239,589,781,126.52
  6. Step 6: Final answer
    x = 117,370,265,117.52

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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.