Home / 125,824,513.60-188,358,856.80-74,680,206.40

Finding the Fourth Proportional to 125,824,513.60, 188,358,856.80 and 74,680,206.40

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Solution

The fourth proportional to 125,824,513.60, 188,358,856.80 and 74,680,206.40 is: 111,796,007.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,824,513.60 : 188,358,856.80 = 74,680,206.40 : x
  2. Step 2: Convert to fraction form
    125,824,513.60/188,358,856.80 = 74,680,206.40/x
  3. Step 3: Cross multiply
    125,824,513.60x = 188,358,856.80 × 74,680,206.40
  4. Step 4: Simplify right side
    125,824,513.60x = 14,066,678,303,092,046
  5. Step 5: Solve for x
    x = 14,066,678,303,092,046/125,824,513.60
  6. Step 6: Final answer
    x = 111,796,007.79

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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.