Home / 142,382,044,582.56-196,487,416,098.56-77,276,472,878.40

Finding the Fourth Proportional to 142,382,044,582.56, 196,487,416,098.56 and 77,276,472,878.40

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Solution

The fourth proportional to 142,382,044,582.56, 196,487,416,098.56 and 77,276,472,878.40 is: 106,641,638,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,382,044,582.56 : 196,487,416,098.56 = 77,276,472,878.40 : x
  2. Step 2: Convert to fraction form
    142,382,044,582.56/196,487,416,098.56 = 77,276,472,878.40/x
  3. Step 3: Cross multiply
    142,382,044,582.56x = 196,487,416,098.56 × 77,276,472,878.40
  4. Step 4: Simplify right side
    142,382,044,582.56x = 15,183,854,481,087,265,767,424
  5. Step 5: Solve for x
    x = 15,183,854,481,087,265,767,424/142,382,044,582.56
  6. Step 6: Final answer
    x = 106,641,638,175.68

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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.