Home / 199,315,386.40-298,973,079.60-91,819,962.40

Finding the Fourth Proportional to 199,315,386.40, 298,973,079.60 and 91,819,962.40

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Solution

The fourth proportional to 199,315,386.40, 298,973,079.60 and 91,819,962.40 is: 137,729,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,315,386.40 : 298,973,079.60 = 91,819,962.40 : x
  2. Step 2: Convert to fraction form
    199,315,386.40/298,973,079.60 = 91,819,962.40/x
  3. Step 3: Cross multiply
    199,315,386.40x = 298,973,079.60 × 91,819,962.40
  4. Step 4: Simplify right side
    199,315,386.40x = 27,451,696,927,484,212
  5. Step 5: Solve for x
    x = 27,451,696,927,484,212/199,315,386.40
  6. Step 6: Final answer
    x = 137,729,943.60

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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.