Home / 12,636,749,507.78-17,439,262,493.81-6,997,965,359.28

Finding the Fourth Proportional to 12,636,749,507.78, 17,439,262,493.81 and 6,997,965,359.28

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Solution

The fourth proportional to 12,636,749,507.78, 17,439,262,493.81 and 6,997,965,359.28 is: 9,657,495,762.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,636,749,507.78 : 17,439,262,493.81 = 6,997,965,359.28 : x
  2. Step 2: Convert to fraction form
    12,636,749,507.78/17,439,262,493.81 = 6,997,965,359.28/x
  3. Step 3: Cross multiply
    12,636,749,507.78x = 17,439,262,493.81 × 6,997,965,359.28
  4. Step 4: Simplify right side
    12,636,749,507.78x = 122,039,354,823,038,337,024
  5. Step 5: Solve for x
    x = 122,039,354,823,038,337,024/12,636,749,507.78
  6. Step 6: Final answer
    x = 9,657,495,762.49

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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.