Home / 103,708,732,698.79-143,038,809,778.65-89,265,017,537.80

Finding the Fourth Proportional to 103,708,732,698.79, 143,038,809,778.65 and 89,265,017,537.80

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Solution

The fourth proportional to 103,708,732,698.79, 143,038,809,778.65 and 89,265,017,537.80 is: 123,117,518,951.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,708,732,698.79 : 143,038,809,778.65 = 89,265,017,537.80 : x
  2. Step 2: Convert to fraction form
    103,708,732,698.79/143,038,809,778.65 = 89,265,017,537.80/x
  3. Step 3: Cross multiply
    103,708,732,698.79x = 143,038,809,778.65 × 89,265,017,537.80
  4. Step 4: Simplify right side
    103,708,732,698.79x = 12,768,361,863,477,230,305,280
  5. Step 5: Solve for x
    x = 12,768,361,863,477,230,305,280/103,708,732,698.79
  6. Step 6: Final answer
    x = 123,117,518,951.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.