Home / 111,875,735,482.47-154,417,240,463.71-72,865,493,479.91

Finding the Fourth Proportional to 111,875,735,482.47, 154,417,240,463.71 and 72,865,493,479.91

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Solution

The fourth proportional to 111,875,735,482.47, 154,417,240,463.71 and 72,865,493,479.91 is: 100,573,090,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,875,735,482.47 : 154,417,240,463.71 = 72,865,493,479.91 : x
  2. Step 2: Convert to fraction form
    111,875,735,482.47/154,417,240,463.71 = 72,865,493,479.91/x
  3. Step 3: Cross multiply
    111,875,735,482.47x = 154,417,240,463.71 × 72,865,493,479.91
  4. Step 4: Simplify right side
    111,875,735,482.47x = 11,251,688,428,194,618,146,816
  5. Step 5: Solve for x
    x = 11,251,688,428,194,618,146,816/111,875,735,482.47
  6. Step 6: Final answer
    x = 100,573,090,131.40

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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.