Home / 668,742,037.95-922,753,283.19-386,510,760.15

Finding the Fourth Proportional to 668,742,037.95, 922,753,283.19 and 386,510,760.15

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Solution

The fourth proportional to 668,742,037.95, 922,753,283.19 and 386,510,760.15 is: 533,320,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,742,037.95 : 922,753,283.19 = 386,510,760.15 : x
  2. Step 2: Convert to fraction form
    668,742,037.95/922,753,283.19 = 386,510,760.15/x
  3. Step 3: Cross multiply
    668,742,037.95x = 922,753,283.19 × 386,510,760.15
  4. Step 4: Simplify right side
    668,742,037.95x = 356,654,072,916,675,136
  5. Step 5: Solve for x
    x = 356,654,072,916,675,136/668,742,037.95
  6. Step 6: Final answer
    x = 533,320,851.21

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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.