Home / 970,376,808.72-1,455,032,166.12-478,006,709.52

Finding the Fourth Proportional to 970,376,808.72, 1,455,032,166.12 and 478,006,709.52

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Solution

The fourth proportional to 970,376,808.72, 1,455,032,166.12 and 478,006,709.52 is: 716,747,485.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,376,808.72 : 1,455,032,166.12 = 478,006,709.52 : x
  2. Step 2: Convert to fraction form
    970,376,808.72/1,455,032,166.12 = 478,006,709.52/x
  3. Step 3: Cross multiply
    970,376,808.72x = 1,455,032,166.12 × 478,006,709.52
  4. Step 4: Simplify right side
    970,376,808.72x = 695,515,137,972,779,136
  5. Step 5: Solve for x
    x = 695,515,137,972,779,136/970,376,808.72
  6. Step 6: Final answer
    x = 716,747,485.85

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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.