Home / 153,712,518.55-212,128,334.19-84,096,306.34

Finding the Fourth Proportional to 153,712,518.55, 212,128,334.19 and 84,096,306.34

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Solution

The fourth proportional to 153,712,518.55, 212,128,334.19 and 84,096,306.34 is: 116,055,670.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,712,518.55 : 212,128,334.19 = 84,096,306.34 : x
  2. Step 2: Convert to fraction form
    153,712,518.55/212,128,334.19 = 84,096,306.34/x
  3. Step 3: Cross multiply
    153,712,518.55x = 212,128,334.19 × 84,096,306.34
  4. Step 4: Simplify right side
    153,712,518.55x = 17,839,209,374,905,816
  5. Step 5: Solve for x
    x = 17,839,209,374,905,816/153,712,518.55
  6. Step 6: Final answer
    x = 116,055,670.31

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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.