Home / 78,638,688,081.45-117,958,032,122.17-26,293,875,345.45

Finding the Fourth Proportional to 78,638,688,081.45, 117,958,032,122.17 and 26,293,875,345.45

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Solution

The fourth proportional to 78,638,688,081.45, 117,958,032,122.17 and 26,293,875,345.45 is: 39,440,813,018.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,638,688,081.45 : 117,958,032,122.17 = 26,293,875,345.45 : x
  2. Step 2: Convert to fraction form
    78,638,688,081.45/117,958,032,122.17 = 26,293,875,345.45/x
  3. Step 3: Cross multiply
    78,638,688,081.45x = 117,958,032,122.17 × 26,293,875,345.45
  4. Step 4: Simplify right side
    78,638,688,081.45x = 3,101,573,792,614,925,205,504
  5. Step 5: Solve for x
    x = 3,101,573,792,614,925,205,504/78,638,688,081.45
  6. Step 6: Final answer
    x = 39,440,813,018.17

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Double scale
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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.