Home / 145,170,986.40-217,758,250.80-42,937,090.20

Finding the Fourth Proportional to 145,170,986.40, 217,758,250.80 and 42,937,090.20

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Solution

The fourth proportional to 145,170,986.40, 217,758,250.80 and 42,937,090.20 is: 64,406,159.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,170,986.40 : 217,758,250.80 = 42,937,090.20 : x
  2. Step 2: Convert to fraction form
    145,170,986.40/217,758,250.80 = 42,937,090.20/x
  3. Step 3: Cross multiply
    145,170,986.40x = 217,758,250.80 × 42,937,090.20
  4. Step 4: Simplify right side
    145,170,986.40x = 9,349,905,656,393,824
  5. Step 5: Solve for x
    x = 9,349,905,656,393,824/145,170,986.40
  6. Step 6: Final answer
    x = 64,406,159.17

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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.