Home / 665,342,875.40-998,014,313.10-493,155,991.40

Finding the Fourth Proportional to 665,342,875.40, 998,014,313.10 and 493,155,991.40

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Solution

The fourth proportional to 665,342,875.40, 998,014,313.10 and 493,155,991.40 is: 739,733,987.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,342,875.40 : 998,014,313.10 = 493,155,991.40 : x
  2. Step 2: Convert to fraction form
    665,342,875.40/998,014,313.10 = 493,155,991.40/x
  3. Step 3: Cross multiply
    665,342,875.40x = 998,014,313.10 × 493,155,991.40
  4. Step 4: Simplify right side
    665,342,875.40x = 492,176,738,008,220,480
  5. Step 5: Solve for x
    x = 492,176,738,008,220,480/665,342,875.40
  6. Step 6: Final answer
    x = 739,733,987.10

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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.