Home / 869,822,392.60-1,200,355,098.48-478,681,816.60

Finding the Fourth Proportional to 869,822,392.60, 1,200,355,098.48 and 478,681,816.60

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Solution

The fourth proportional to 869,822,392.60, 1,200,355,098.48 and 478,681,816.60 is: 660,581,015.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,822,392.60 : 1,200,355,098.48 = 478,681,816.60 : x
  2. Step 2: Convert to fraction form
    869,822,392.60/1,200,355,098.48 = 478,681,816.60/x
  3. Step 3: Cross multiply
    869,822,392.60x = 1,200,355,098.48 × 478,681,816.60
  4. Step 4: Simplify right side
    869,822,392.60x = 574,588,159,105,478,336
  5. Step 5: Solve for x
    x = 574,588,159,105,478,336/869,822,392.60
  6. Step 6: Final answer
    x = 660,581,015.15

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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.