Home / 661,717,541.40-992,576,312.10-170,429,861.40

Finding the Fourth Proportional to 661,717,541.40, 992,576,312.10 and 170,429,861.40

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Solution

The fourth proportional to 661,717,541.40, 992,576,312.10 and 170,429,861.40 is: 255,644,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,717,541.40 : 992,576,312.10 = 170,429,861.40 : x
  2. Step 2: Convert to fraction form
    661,717,541.40/992,576,312.10 = 170,429,861.40/x
  3. Step 3: Cross multiply
    661,717,541.40x = 992,576,312.10 × 170,429,861.40
  4. Step 4: Simplify right side
    661,717,541.40x = 169,164,643,300,126,144
  5. Step 5: Solve for x
    x = 169,164,643,300,126,144/661,717,541.40
  6. Step 6: Final answer
    x = 255,644,792.10

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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.