Home / 128,858,333.16-177,824,528.76-70,911,581.16

Finding the Fourth Proportional to 128,858,333.16, 177,824,528.76 and 70,911,581.16

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Solution

The fourth proportional to 128,858,333.16, 177,824,528.76 and 70,911,581.16 is: 97,857,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,858,333.16 : 177,824,528.76 = 70,911,581.16 : x
  2. Step 2: Convert to fraction form
    128,858,333.16/177,824,528.76 = 70,911,581.16/x
  3. Step 3: Cross multiply
    128,858,333.16x = 177,824,528.76 × 70,911,581.16
  4. Step 4: Simplify right side
    128,858,333.16x = 12,609,818,503,403,492
  5. Step 5: Solve for x
    x = 12,609,818,503,403,492/128,858,333.16
  6. Step 6: Final answer
    x = 97,857,997.96

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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.