Home / 19,973,932,155.76-29,919,205,678.41-11,980,750,960.13

Finding the Fourth Proportional to 19,973,932,155.76, 29,919,205,678.41 and 11,980,750,960.13

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Solution

The fourth proportional to 19,973,932,155.76, 29,919,205,678.41 and 11,980,750,960.13 is: 17,946,118,438.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,973,932,155.76 : 29,919,205,678.41 = 11,980,750,960.13 : x
  2. Step 2: Convert to fraction form
    19,973,932,155.76/29,919,205,678.41 = 11,980,750,960.13/x
  3. Step 3: Cross multiply
    19,973,932,155.76x = 29,919,205,678.41 × 11,980,750,960.13
  4. Step 4: Simplify right side
    19,973,932,155.76x = 358,454,552,157,937,532,928
  5. Step 5: Solve for x
    x = 358,454,552,157,937,532,928/19,973,932,155.76
  6. Step 6: Final answer
    x = 17,946,118,438.91

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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.