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Finding the Fourth Proportional to 679,888,937.90, 1,019,833,406.85 and 623,201,897.90

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Solution

The fourth proportional to 679,888,937.90, 1,019,833,406.85 and 623,201,897.90 is: 934,802,846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,888,937.90 : 1,019,833,406.85 = 623,201,897.90 : x
  2. Step 2: Convert to fraction form
    679,888,937.90/1,019,833,406.85 = 623,201,897.90/x
  3. Step 3: Cross multiply
    679,888,937.90x = 1,019,833,406.85 × 623,201,897.90
  4. Step 4: Simplify right side
    679,888,937.90x = 635,562,114,690,742,912
  5. Step 5: Solve for x
    x = 635,562,114,690,742,912/679,888,937.90
  6. Step 6: Final answer
    x = 934,802,846.85

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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.