Home / 121,069,156,721.20-181,603,735,081.80-83,411,885,190.40

Finding the Fourth Proportional to 121,069,156,721.20, 181,603,735,081.80 and 83,411,885,190.40

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Solution

The fourth proportional to 121,069,156,721.20, 181,603,735,081.80 and 83,411,885,190.40 is: 125,117,827,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,069,156,721.20 : 181,603,735,081.80 = 83,411,885,190.40 : x
  2. Step 2: Convert to fraction form
    121,069,156,721.20/181,603,735,081.80 = 83,411,885,190.40/x
  3. Step 3: Cross multiply
    121,069,156,721.20x = 181,603,735,081.80 × 83,411,885,190.40
  4. Step 4: Simplify right side
    121,069,156,721.20x = 15,147,909,900,790,916,972,544
  5. Step 5: Solve for x
    x = 15,147,909,900,790,916,972,544/121,069,156,721.20
  6. Step 6: Final answer
    x = 125,117,827,785.60

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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.