Home / 143,400,439,938.05-197,909,960,235.06-81,616,032,389.49

Finding the Fourth Proportional to 143,400,439,938.05, 197,909,960,235.06 and 81,616,032,389.49

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Solution

The fourth proportional to 143,400,439,938.05, 197,909,960,235.06 and 81,616,032,389.49 is: 112,640,001,186.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,400,439,938.05 : 197,909,960,235.06 = 81,616,032,389.49 : x
  2. Step 2: Convert to fraction form
    143,400,439,938.05/197,909,960,235.06 = 81,616,032,389.49/x
  3. Step 3: Cross multiply
    143,400,439,938.05x = 197,909,960,235.06 × 81,616,032,389.49
  4. Step 4: Simplify right side
    143,400,439,938.05x = 16,152,625,724,746,939,498,496
  5. Step 5: Solve for x
    x = 16,152,625,724,746,939,498,496/143,400,439,938.05
  6. Step 6: Final answer
    x = 112,640,001,186.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.