Home / 138,801,335,209.12-191,573,312,603.56-90,032,594,359.56

Finding the Fourth Proportional to 138,801,335,209.12, 191,573,312,603.56 and 90,032,594,359.56

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Solution

The fourth proportional to 138,801,335,209.12, 191,573,312,603.56 and 90,032,594,359.56 is: 124,262,798,464.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,801,335,209.12 : 191,573,312,603.56 = 90,032,594,359.56 : x
  2. Step 2: Convert to fraction form
    138,801,335,209.12/191,573,312,603.56 = 90,032,594,359.56/x
  3. Step 3: Cross multiply
    138,801,335,209.12x = 191,573,312,603.56 × 90,032,594,359.56
  4. Step 4: Simplify right side
    138,801,335,209.12x = 17,247,842,343,753,500,065,792
  5. Step 5: Solve for x
    x = 17,247,842,343,753,500,065,792/138,801,335,209.12
  6. Step 6: Final answer
    x = 124,262,798,464.93

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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.