Home / 128,328,262,827.06-177,111,418,718.88-76,888,854,094.26

Finding the Fourth Proportional to 128,328,262,827.06, 177,111,418,718.88 and 76,888,854,094.26

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Solution

The fourth proportional to 128,328,262,827.06, 177,111,418,718.88 and 76,888,854,094.26 is: 106,117,652,746.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,328,262,827.06 : 177,111,418,718.88 = 76,888,854,094.26 : x
  2. Step 2: Convert to fraction form
    128,328,262,827.06/177,111,418,718.88 = 76,888,854,094.26/x
  3. Step 3: Cross multiply
    128,328,262,827.06x = 177,111,418,718.88 × 76,888,854,094.26
  4. Step 4: Simplify right side
    128,328,262,827.06x = 13,617,894,032,303,353,495,552
  5. Step 5: Solve for x
    x = 13,617,894,032,303,353,495,552/128,328,262,827.06
  6. Step 6: Final answer
    x = 106,117,652,746.97

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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.