Home / 145,655,152.10-218,482,728.15-138,936,688.10

Finding the Fourth Proportional to 145,655,152.10, 218,482,728.15 and 138,936,688.10

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Solution

The fourth proportional to 145,655,152.10, 218,482,728.15 and 138,936,688.10 is: 208,405,032.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,152.10 : 218,482,728.15 = 138,936,688.10 : x
  2. Step 2: Convert to fraction form
    145,655,152.10/218,482,728.15 = 138,936,688.10/x
  3. Step 3: Cross multiply
    145,655,152.10x = 218,482,728.15 × 138,936,688.10
  4. Step 4: Simplify right side
    145,655,152.10x = 30,355,266,656,213,640
  5. Step 5: Solve for x
    x = 30,355,266,656,213,640/145,655,152.10
  6. Step 6: Final answer
    x = 208,405,032.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.