Home / 385,406,722.50-578,223,647.91-155,257,374.66

Finding the Fourth Proportional to 385,406,722.50, 578,223,647.91 and 155,257,374.66

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Solution

The fourth proportional to 385,406,722.50, 578,223,647.91 and 155,257,374.66 is: 232,931,810.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,406,722.50 : 578,223,647.91 = 155,257,374.66 : x
  2. Step 2: Convert to fraction form
    385,406,722.50/578,223,647.91 = 155,257,374.66/x
  3. Step 3: Cross multiply
    385,406,722.50x = 578,223,647.91 × 155,257,374.66
  4. Step 4: Simplify right side
    385,406,722.50x = 89,773,485,540,834,784
  5. Step 5: Solve for x
    x = 89,773,485,540,834,784/385,406,722.50
  6. Step 6: Final answer
    x = 232,931,810.21

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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.