Home / 138,624,589,541.66-191,301,788,479.86-77,657,385,913.76

Finding the Fourth Proportional to 138,624,589,541.66, 191,301,788,479.86 and 77,657,385,913.76

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Solution

The fourth proportional to 138,624,589,541.66, 191,301,788,479.86 and 77,657,385,913.76 is: 107,167,111,283.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,624,589,541.66 : 191,301,788,479.86 = 77,657,385,913.76 : x
  2. Step 2: Convert to fraction form
    138,624,589,541.66/191,301,788,479.86 = 77,657,385,913.76/x
  3. Step 3: Cross multiply
    138,624,589,541.66x = 191,301,788,479.86 × 77,657,385,913.76
  4. Step 4: Simplify right side
    138,624,589,541.66x = 14,855,996,813,973,739,536,384
  5. Step 5: Solve for x
    x = 14,855,996,813,973,739,536,384/138,624,589,541.66
  6. Step 6: Final answer
    x = 107,167,111,283.02

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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.