Home / 385,406,722-578,223,647.16-155,257,374.16

Finding the Fourth Proportional to 385,406,722, 578,223,647.16 and 155,257,374.16

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Solution

The fourth proportional to 385,406,722, 578,223,647.16 and 155,257,374.16 is: 232,931,809.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,406,722 : 578,223,647.16 = 155,257,374.16 : x
  2. Step 2: Convert to fraction form
    385,406,722/578,223,647.16 = 155,257,374.16/x
  3. Step 3: Cross multiply
    385,406,722x = 578,223,647.16 × 155,257,374.16
  4. Step 4: Simplify right side
    385,406,722x = 89,773,485,135,279,936
  5. Step 5: Solve for x
    x = 89,773,485,135,279,936/385,406,722
  6. Step 6: Final answer
    x = 232,931,809.46

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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.