Home / 145,170,987.40-217,758,252.30-42,937,091.20

Finding the Fourth Proportional to 145,170,987.40, 217,758,252.30 and 42,937,091.20

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Solution

The fourth proportional to 145,170,987.40, 217,758,252.30 and 42,937,091.20 is: 64,406,160.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,170,987.40 : 217,758,252.30 = 42,937,091.20 : x
  2. Step 2: Convert to fraction form
    145,170,987.40/217,758,252.30 = 42,937,091.20/x
  3. Step 3: Cross multiply
    145,170,987.40x = 217,758,252.30 × 42,937,091.20
  4. Step 4: Simplify right side
    145,170,987.40x = 9,349,905,938,557,710
  5. Step 5: Solve for x
    x = 9,349,905,938,557,710/145,170,987.40
  6. Step 6: Final answer
    x = 64,406,160.67

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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.