Home / 661,886,901.24-913,374,453.02-379,426,840.80

Finding the Fourth Proportional to 661,886,901.24, 913,374,453.02 and 379,426,840.80

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Solution

The fourth proportional to 661,886,901.24, 913,374,453.02 and 379,426,840.80 is: 523,592,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,886,901.24 : 913,374,453.02 = 379,426,840.80 : x
  2. Step 2: Convert to fraction form
    661,886,901.24/913,374,453.02 = 379,426,840.80/x
  3. Step 3: Cross multiply
    661,886,901.24x = 913,374,453.02 × 379,426,840.80
  4. Step 4: Simplify right side
    661,886,901.24x = 346,558,783,176,806,592
  5. Step 5: Solve for x
    x = 346,558,783,176,806,592/661,886,901.24
  6. Step 6: Final answer
    x = 523,592,146.22

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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.