Home / 81,798,681,477.61-122,710,290,581.25-28,730,361,027.61

Finding the Fourth Proportional to 81,798,681,477.61, 122,710,290,581.25 and 28,730,361,027.61

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Solution

The fourth proportional to 81,798,681,477.61, 122,710,290,581.25 and 28,730,361,027.61 is: 43,099,850,590.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,798,681,477.61 : 122,710,290,581.25 = 28,730,361,027.61 : x
  2. Step 2: Convert to fraction form
    81,798,681,477.61/122,710,290,581.25 = 28,730,361,027.61/x
  3. Step 3: Cross multiply
    81,798,681,477.61x = 122,710,290,581.25 × 28,730,361,027.61
  4. Step 4: Simplify right side
    81,798,681,477.61x = 3,525,510,950,202,243,547,136
  5. Step 5: Solve for x
    x = 3,525,510,950,202,243,547,136/81,798,681,477.61
  6. Step 6: Final answer
    x = 43,099,850,590.71

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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.