Home / 651,761,406.65-899,435,420.12-354,401,518.01

Finding the Fourth Proportional to 651,761,406.65, 899,435,420.12 and 354,401,518.01

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Solution

The fourth proportional to 651,761,406.65, 899,435,420.12 and 354,401,518.01 is: 489,076,639.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,761,406.65 : 899,435,420.12 = 354,401,518.01 : x
  2. Step 2: Convert to fraction form
    651,761,406.65/899,435,420.12 = 354,401,518.01/x
  3. Step 3: Cross multiply
    651,761,406.65x = 899,435,420.12 × 354,401,518.01
  4. Step 4: Simplify right side
    651,761,406.65x = 318,761,278,242,490,112
  5. Step 5: Solve for x
    x = 318,761,278,242,490,112/651,761,406.65
  6. Step 6: Final answer
    x = 489,076,639.07

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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.