Home / 42,009,856.30-63,014,784.45-13,258,898.20

Finding the Fourth Proportional to 42,009,856.30, 63,014,784.45 and 13,258,898.20

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Solution

The fourth proportional to 42,009,856.30, 63,014,784.45 and 13,258,898.20 is: 19,888,347.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,009,856.30 : 63,014,784.45 = 13,258,898.20 : x
  2. Step 2: Convert to fraction form
    42,009,856.30/63,014,784.45 = 13,258,898.20/x
  3. Step 3: Cross multiply
    42,009,856.30x = 63,014,784.45 × 13,258,898.20
  4. Step 4: Simplify right side
    42,009,856.30x = 835,506,612,117,493
  5. Step 5: Solve for x
    x = 835,506,612,117,493/42,009,856.30
  6. Step 6: Final answer
    x = 19,888,347.30

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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.