Home / 785,496,818.79-1,178,532,530.61-365,518,489.98

Finding the Fourth Proportional to 785,496,818.79, 1,178,532,530.61 and 365,518,489.98

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Solution

The fourth proportional to 785,496,818.79, 1,178,532,530.61 and 365,518,489.98 is: 548,411,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,496,818.79 : 1,178,532,530.61 = 365,518,489.98 : x
  2. Step 2: Convert to fraction form
    785,496,818.79/1,178,532,530.61 = 365,518,489.98/x
  3. Step 3: Cross multiply
    785,496,818.79x = 1,178,532,530.61 × 365,518,489.98
  4. Step 4: Simplify right side
    785,496,818.79x = 430,775,430,980,875,328
  5. Step 5: Solve for x
    x = 430,775,430,980,875,328/785,496,818.79
  6. Step 6: Final answer
    x = 548,411,426.60

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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.