Home / 711,109,503.23-1,064,539,064.39-430,140,118.41

Finding the Fourth Proportional to 711,109,503.23, 1,064,539,064.39 and 430,140,118.41

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Solution

The fourth proportional to 711,109,503.23, 1,064,539,064.39 and 430,140,118.41 is: 643,924,679.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,109,503.23 : 1,064,539,064.39 = 430,140,118.41 : x
  2. Step 2: Convert to fraction form
    711,109,503.23/1,064,539,064.39 = 430,140,118.41/x
  3. Step 3: Cross multiply
    711,109,503.23x = 1,064,539,064.39 × 430,140,118.41
  4. Step 4: Simplify right side
    711,109,503.23x = 457,900,959,206,634,560
  5. Step 5: Solve for x
    x = 457,900,959,206,634,560/711,109,503.23
  6. Step 6: Final answer
    x = 643,924,679.86

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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.