Home / 129,732,771,918.30-194,528,217,645.12-103,012,979,516.02

Finding the Fourth Proportional to 129,732,771,918.30, 194,528,217,645.12 and 103,012,979,516.02

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Solution

The fourth proportional to 129,732,771,918.30, 194,528,217,645.12 and 103,012,979,516.02 is: 154,463,139,908.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,732,771,918.30 : 194,528,217,645.12 = 103,012,979,516.02 : x
  2. Step 2: Convert to fraction form
    129,732,771,918.30/194,528,217,645.12 = 103,012,979,516.02/x
  3. Step 3: Cross multiply
    129,732,771,918.30x = 194,528,217,645.12 × 103,012,979,516.02
  4. Step 4: Simplify right side
    129,732,771,918.30x = 20,038,931,299,564,628,475,904
  5. Step 5: Solve for x
    x = 20,038,931,299,564,628,475,904/129,732,771,918.30
  6. Step 6: Final answer
    x = 154,463,139,908.74

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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.