Home / 355,077,261,482.04-490,043,142,665.40-216,038,414,021.68

Finding the Fourth Proportional to 355,077,261,482.04, 490,043,142,665.40 and 216,038,414,021.68

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Solution

The fourth proportional to 355,077,261,482.04, 490,043,142,665.40 and 216,038,414,021.68 is: 298,155,232,193.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,077,261,482.04 : 490,043,142,665.40 = 216,038,414,021.68 : x
  2. Step 2: Convert to fraction form
    355,077,261,482.04/490,043,142,665.40 = 216,038,414,021.68/x
  3. Step 3: Cross multiply
    355,077,261,482.04x = 490,043,142,665.40 × 216,038,414,021.68
  4. Step 4: Simplify right side
    355,077,261,482.04x = 105,868,143,343,632,891,510,784
  5. Step 5: Solve for x
    x = 105,868,143,343,632,891,510,784/355,077,261,482.04
  6. Step 6: Final answer
    x = 298,155,232,193.00

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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.