Home / 129,732,772,041.72-194,528,217,829.64-103,012,979,639.49

Finding the Fourth Proportional to 129,732,772,041.72, 194,528,217,829.64 and 103,012,979,639.49

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Solution

The fourth proportional to 129,732,772,041.72, 194,528,217,829.64 and 103,012,979,639.49 is: 154,463,140,093.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,732,772,041.72 : 194,528,217,829.64 = 103,012,979,639.49 : x
  2. Step 2: Convert to fraction form
    129,732,772,041.72/194,528,217,829.64 = 103,012,979,639.49/x
  3. Step 3: Cross multiply
    129,732,772,041.72x = 194,528,217,829.64 × 103,012,979,639.49
  4. Step 4: Simplify right side
    129,732,772,041.72x = 20,038,931,342,590,981,701,632
  5. Step 5: Solve for x
    x = 20,038,931,342,590,981,701,632/129,732,772,041.72
  6. Step 6: Final answer
    x = 154,463,140,093.44

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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.