Home / 698,976,005.70-1,048,464,008.55-685,371,116.10

Finding the Fourth Proportional to 698,976,005.70, 1,048,464,008.55 and 685,371,116.10

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Solution

The fourth proportional to 698,976,005.70, 1,048,464,008.55 and 685,371,116.10 is: 1,028,056,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,976,005.70 : 1,048,464,008.55 = 685,371,116.10 : x
  2. Step 2: Convert to fraction form
    698,976,005.70/1,048,464,008.55 = 685,371,116.10/x
  3. Step 3: Cross multiply
    698,976,005.70x = 1,048,464,008.55 × 685,371,116.10
  4. Step 4: Simplify right side
    698,976,005.70x = 718,586,947,730,593,408
  5. Step 5: Solve for x
    x = 718,586,947,730,593,408/698,976,005.70
  6. Step 6: Final answer
    x = 1,028,056,674.15

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1.5x scale

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.