Home / 128,884,503.92-177,864,521.52-70,151,416.04

Finding the Fourth Proportional to 128,884,503.92, 177,864,521.52 and 70,151,416.04

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Solution

The fourth proportional to 128,884,503.92, 177,864,521.52 and 70,151,416.04 is: 96,811,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,884,503.92 : 177,864,521.52 = 70,151,416.04 : x
  2. Step 2: Convert to fraction form
    128,884,503.92/177,864,521.52 = 70,151,416.04/x
  3. Step 3: Cross multiply
    128,884,503.92x = 177,864,521.52 × 70,151,416.04
  4. Step 4: Simplify right side
    128,884,503.92x = 12,477,448,047,905,056
  5. Step 5: Solve for x
    x = 12,477,448,047,905,056/128,884,503.92
  6. Step 6: Final answer
    x = 96,811,080.22

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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.