Home / 939,729,803.40-1,409,594,705.10-800,657,598.60

Finding the Fourth Proportional to 939,729,803.40, 1,409,594,705.10 and 800,657,598.60

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Solution

The fourth proportional to 939,729,803.40, 1,409,594,705.10 and 800,657,598.60 is: 1,200,986,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,729,803.40 : 1,409,594,705.10 = 800,657,598.60 : x
  2. Step 2: Convert to fraction form
    939,729,803.40/1,409,594,705.10 = 800,657,598.60/x
  3. Step 3: Cross multiply
    939,729,803.40x = 1,409,594,705.10 × 800,657,598.60
  4. Step 4: Simplify right side
    939,729,803.40x = 1,128,602,711,584,641,152
  5. Step 5: Solve for x
    x = 1,128,602,711,584,641,152/939,729,803.40
  6. Step 6: Final answer
    x = 1,200,986,397.90

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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.