Home / 922,011,982.75-1,272,380,369.69-498,625,643.95

Finding the Fourth Proportional to 922,011,982.75, 1,272,380,369.69 and 498,625,643.95

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Solution

The fourth proportional to 922,011,982.75, 1,272,380,369.69 and 498,625,643.95 is: 688,105,461.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,011,982.75 : 1,272,380,369.69 = 498,625,643.95 : x
  2. Step 2: Convert to fraction form
    922,011,982.75/1,272,380,369.69 = 498,625,643.95/x
  3. Step 3: Cross multiply
    922,011,982.75x = 1,272,380,369.69 × 498,625,643.95
  4. Step 4: Simplify right side
    922,011,982.75x = 634,441,481,184,081,024
  5. Step 5: Solve for x
    x = 634,441,481,184,081,024/922,011,982.75
  6. Step 6: Final answer
    x = 688,105,461.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.