Home / 520,129,803.53-780,075,316.46-310,099,918.98

Finding the Fourth Proportional to 520,129,803.53, 780,075,316.46 and 310,099,918.98

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Solution

The fourth proportional to 520,129,803.53, 780,075,316.46 and 310,099,918.98 is: 465,078,699.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,129,803.53 : 780,075,316.46 = 310,099,918.98 : x
  2. Step 2: Convert to fraction form
    520,129,803.53/780,075,316.46 = 310,099,918.98/x
  3. Step 3: Cross multiply
    520,129,803.53x = 780,075,316.46 × 310,099,918.98
  4. Step 4: Simplify right side
    520,129,803.53x = 241,901,292,430,993,376
  5. Step 5: Solve for x
    x = 241,901,292,430,993,376/520,129,803.53
  6. Step 6: Final answer
    x = 465,078,699.19

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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.