Home / 30,724,546,465.50-42,406,695,110.34-18,678,997,750.74

Finding the Fourth Proportional to 30,724,546,465.50, 42,406,695,110.34 and 18,678,997,750.74

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Solution

The fourth proportional to 30,724,546,465.50, 42,406,695,110.34 and 18,678,997,750.74 is: 25,781,163,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,724,546,465.50 : 42,406,695,110.34 = 18,678,997,750.74 : x
  2. Step 2: Convert to fraction form
    30,724,546,465.50/42,406,695,110.34 = 18,678,997,750.74/x
  3. Step 3: Cross multiply
    30,724,546,465.50x = 42,406,695,110.34 × 18,678,997,750.74
  4. Step 4: Simplify right side
    30,724,546,465.50x = 792,114,562,582,357,868,544
  5. Step 5: Solve for x
    x = 792,114,562,582,357,868,544/30,724,546,465.50
  6. Step 6: Final answer
    x = 25,781,163,717.80

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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.