Home / 30,546,523,935.09-42,157,872,762.45-18,503,181,374.79

Finding the Fourth Proportional to 30,546,523,935.09, 42,157,872,762.45 and 18,503,181,374.79

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Solution

The fourth proportional to 30,546,523,935.09, 42,157,872,762.45 and 18,503,181,374.79 is: 25,536,613,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,546,523,935.09 : 42,157,872,762.45 = 18,503,181,374.79 : x
  2. Step 2: Convert to fraction form
    30,546,523,935.09/42,157,872,762.45 = 18,503,181,374.79/x
  3. Step 3: Cross multiply
    30,546,523,935.09x = 42,157,872,762.45 × 18,503,181,374.79
  4. Step 4: Simplify right side
    30,546,523,935.09x = 780,054,766,098,931,515,392
  5. Step 5: Solve for x
    x = 780,054,766,098,931,515,392/30,546,523,935.09
  6. Step 6: Final answer
    x = 25,536,613,192.27

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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.