Home / 221,668,424,642.18-305,904,833,737.42-130,220,829,802.72

Finding the Fourth Proportional to 221,668,424,642.18, 305,904,833,737.42 and 130,220,829,802.72

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Solution

The fourth proportional to 221,668,424,642.18, 305,904,833,737.42 and 130,220,829,802.72 is: 179,706,159,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,668,424,642.18 : 305,904,833,737.42 = 130,220,829,802.72 : x
  2. Step 2: Convert to fraction form
    221,668,424,642.18/305,904,833,737.42 = 130,220,829,802.72/x
  3. Step 3: Cross multiply
    221,668,424,642.18x = 305,904,833,737.42 × 130,220,829,802.72
  4. Step 4: Simplify right side
    221,668,424,642.18x = 39,835,181,289,949,930,455,040
  5. Step 5: Solve for x
    x = 39,835,181,289,949,930,455,040/221,668,424,642.18
  6. Step 6: Final answer
    x = 179,706,159,568.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.