Home / 142,355,289.40-213,532,934.10-65,827,785.40

Finding the Fourth Proportional to 142,355,289.40, 213,532,934.10 and 65,827,785.40

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Solution

The fourth proportional to 142,355,289.40, 213,532,934.10 and 65,827,785.40 is: 98,741,678.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,355,289.40 : 213,532,934.10 = 65,827,785.40 : x
  2. Step 2: Convert to fraction form
    142,355,289.40/213,532,934.10 = 65,827,785.40/x
  3. Step 3: Cross multiply
    142,355,289.40x = 213,532,934.10 × 65,827,785.40
  4. Step 4: Simplify right side
    142,355,289.40x = 14,056,400,161,767,142
  5. Step 5: Solve for x
    x = 14,056,400,161,767,142/142,355,289.40
  6. Step 6: Final answer
    x = 98,741,678.10

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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.