Home / 152,080,495,987.70-228,120,743,981.55-139,009,052,429.30

Finding the Fourth Proportional to 152,080,495,987.70, 228,120,743,981.55 and 139,009,052,429.30

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Solution

The fourth proportional to 152,080,495,987.70, 228,120,743,981.55 and 139,009,052,429.30 is: 208,513,578,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,080,495,987.70 : 228,120,743,981.55 = 139,009,052,429.30 : x
  2. Step 2: Convert to fraction form
    152,080,495,987.70/228,120,743,981.55 = 139,009,052,429.30/x
  3. Step 3: Cross multiply
    152,080,495,987.70x = 228,120,743,981.55 × 139,009,052,429.30
  4. Step 4: Simplify right side
    152,080,495,987.70x = 31,710,848,460,342,203,252,736
  5. Step 5: Solve for x
    x = 31,710,848,460,342,203,252,736/152,080,495,987.70
  6. Step 6: Final answer
    x = 208,513,578,643.95

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Double scale
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1.5x scale

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.