Home / 1,076,358,350.40-1,614,453,544.80-421,182,139.20

Finding the Fourth Proportional to 1,076,358,350.40, 1,614,453,544.80 and 421,182,139.20

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Solution

The fourth proportional to 1,076,358,350.40, 1,614,453,544.80 and 421,182,139.20 is: 631,740,346.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,358,350.40 : 1,614,453,544.80 = 421,182,139.20 : x
  2. Step 2: Convert to fraction form
    1,076,358,350.40/1,614,453,544.80 = 421,182,139.20/x
  3. Step 3: Cross multiply
    1,076,358,350.40x = 1,614,453,544.80 × 421,182,139.20
  4. Step 4: Simplify right side
    1,076,358,350.40x = 679,978,997,637,886,976
  5. Step 5: Solve for x
    x = 679,978,997,637,886,976/1,076,358,350.40
  6. Step 6: Final answer
    x = 631,740,346.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.