Home / 85,657,106,373.78-118,209,641,642.31-47,077,393,728.87

Finding the Fourth Proportional to 85,657,106,373.78, 118,209,641,642.31 and 47,077,393,728.87

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Solution

The fourth proportional to 85,657,106,373.78, 118,209,641,642.31 and 47,077,393,728.87 is: 64,968,361,385.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,657,106,373.78 : 118,209,641,642.31 = 47,077,393,728.87 : x
  2. Step 2: Convert to fraction form
    85,657,106,373.78/118,209,641,642.31 = 47,077,393,728.87/x
  3. Step 3: Cross multiply
    85,657,106,373.78x = 118,209,641,642.31 × 47,077,393,728.87
  4. Step 4: Simplify right side
    85,657,106,373.78x = 5,565,001,842,143,654,838,272
  5. Step 5: Solve for x
    x = 5,565,001,842,143,654,838,272/85,657,106,373.78
  6. Step 6: Final answer
    x = 64,968,361,385.68

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1.5x scale

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.