Home / 216,746,926.04-299,033,540.70-128,573,384.60

Finding the Fourth Proportional to 216,746,926.04, 299,033,540.70 and 128,573,384.60

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Solution

The fourth proportional to 216,746,926.04, 299,033,540.70 and 128,573,384.60 is: 177,385,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,746,926.04 : 299,033,540.70 = 128,573,384.60 : x
  2. Step 2: Convert to fraction form
    216,746,926.04/299,033,540.70 = 128,573,384.60/x
  3. Step 3: Cross multiply
    216,746,926.04x = 299,033,540.70 × 128,573,384.60
  4. Step 4: Simplify right side
    216,746,926.04x = 38,447,754,436,720,848
  5. Step 5: Solve for x
    x = 38,447,754,436,720,848/216,746,926.04
  6. Step 6: Final answer
    x = 177,385,465.80

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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.