Home / 779,719,748.40-1,076,014,198.89-422,487,243.36

Finding the Fourth Proportional to 779,719,748.40, 1,076,014,198.89 and 422,487,243.36

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Solution

The fourth proportional to 779,719,748.40, 1,076,014,198.89 and 422,487,243.36 is: 583,032,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,719,748.40 : 1,076,014,198.89 = 422,487,243.36 : x
  2. Step 2: Convert to fraction form
    779,719,748.40/1,076,014,198.89 = 422,487,243.36/x
  3. Step 3: Cross multiply
    779,719,748.40x = 1,076,014,198.89 × 422,487,243.36
  4. Step 4: Simplify right side
    779,719,748.40x = 454,602,272,705,254,912
  5. Step 5: Solve for x
    x = 454,602,272,705,254,912/779,719,748.40
  6. Step 6: Final answer
    x = 583,032,908.48

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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.