Home / 128,897,202.88-177,881,920.32-70,163,698.96

Finding the Fourth Proportional to 128,897,202.88, 177,881,920.32 and 70,163,698.96

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Solution

The fourth proportional to 128,897,202.88, 177,881,920.32 and 70,163,698.96 is: 96,827,962.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,897,202.88 : 177,881,920.32 = 70,163,698.96 : x
  2. Step 2: Convert to fraction form
    128,897,202.88/177,881,920.32 = 70,163,698.96/x
  3. Step 3: Cross multiply
    128,897,202.88x = 177,881,920.32 × 70,163,698.96
  4. Step 4: Simplify right side
    128,897,202.88x = 12,480,853,507,759,186
  5. Step 5: Solve for x
    x = 12,480,853,507,759,186/128,897,202.88
  6. Step 6: Final answer
    x = 96,827,962.35

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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.