Home / 21,022,386.40-31,533,579.60-6,838,962.40

Finding the Fourth Proportional to 21,022,386.40, 31,533,579.60 and 6,838,962.40

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Solution

The fourth proportional to 21,022,386.40, 31,533,579.60 and 6,838,962.40 is: 10,258,443.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022,386.40 : 31,533,579.60 = 6,838,962.40 : x
  2. Step 2: Convert to fraction form
    21,022,386.40/31,533,579.60 = 6,838,962.40/x
  3. Step 3: Cross multiply
    21,022,386.40x = 31,533,579.60 × 6,838,962.40
  4. Step 4: Simplify right side
    21,022,386.40x = 215,656,965,221,807.06
  5. Step 5: Solve for x
    x = 215,656,965,221,807.06/21,022,386.40
  6. Step 6: Final answer
    x = 10,258,443.60

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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.