Home / 426,979,852.17-640,549,953.60-193,826,928.57

Finding the Fourth Proportional to 426,979,852.17, 640,549,953.60 and 193,826,928.57

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Solution

The fourth proportional to 426,979,852.17, 640,549,953.60 and 193,826,928.57 is: 290,776,788.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,979,852.17 : 640,549,953.60 = 193,826,928.57 : x
  2. Step 2: Convert to fraction form
    426,979,852.17/640,549,953.60 = 193,826,928.57/x
  3. Step 3: Cross multiply
    426,979,852.17x = 640,549,953.60 × 193,826,928.57
  4. Step 4: Simplify right side
    426,979,852.17x = 124,155,830,101,944,016
  5. Step 5: Solve for x
    x = 124,155,830,101,944,016/426,979,852.17
  6. Step 6: Final answer
    x = 290,776,788.34

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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.