Home / 206,687,259.40-310,030,889.10-70,372,642.90

Finding the Fourth Proportional to 206,687,259.40, 310,030,889.10 and 70,372,642.90

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Solution

The fourth proportional to 206,687,259.40, 310,030,889.10 and 70,372,642.90 is: 105,558,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,687,259.40 : 310,030,889.10 = 70,372,642.90 : x
  2. Step 2: Convert to fraction form
    206,687,259.40/310,030,889.10 = 70,372,642.90/x
  3. Step 3: Cross multiply
    206,687,259.40x = 310,030,889.10 × 70,372,642.90
  4. Step 4: Simplify right side
    206,687,259.40x = 21,817,693,046,603,804
  5. Step 5: Solve for x
    x = 21,817,693,046,603,804/206,687,259.40
  6. Step 6: Final answer
    x = 105,558,964.35

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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.