Home / 19,315,585,285.60-28,973,377,928.40-11,968,944,901.60

Finding the Fourth Proportional to 19,315,585,285.60, 28,973,377,928.40 and 11,968,944,901.60

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Solution

The fourth proportional to 19,315,585,285.60, 28,973,377,928.40 and 11,968,944,901.60 is: 17,953,417,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315,585,285.60 : 28,973,377,928.40 = 11,968,944,901.60 : x
  2. Step 2: Convert to fraction form
    19,315,585,285.60/28,973,377,928.40 = 11,968,944,901.60/x
  3. Step 3: Cross multiply
    19,315,585,285.60x = 28,973,377,928.40 × 11,968,944,901.60
  4. Step 4: Simplify right side
    19,315,585,285.60x = 346,780,764,038,253,182,976
  5. Step 5: Solve for x
    x = 346,780,764,038,253,182,976/19,315,585,285.60
  6. Step 6: Final answer
    x = 17,953,417,352.40

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Double scale
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1.5x scale

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.