Home / 145,536,751.80-218,305,127.70-142,666,970.40

Finding the Fourth Proportional to 145,536,751.80, 218,305,127.70 and 142,666,970.40

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Solution

The fourth proportional to 145,536,751.80, 218,305,127.70 and 142,666,970.40 is: 214,000,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,536,751.80 : 218,305,127.70 = 142,666,970.40 : x
  2. Step 2: Convert to fraction form
    145,536,751.80/218,305,127.70 = 142,666,970.40/x
  3. Step 3: Cross multiply
    145,536,751.80x = 218,305,127.70 × 142,666,970.40
  4. Step 4: Simplify right side
    145,536,751.80x = 31,144,931,191,744,120
  5. Step 5: Solve for x
    x = 31,144,931,191,744,120/145,536,751.80
  6. Step 6: Final answer
    x = 214,000,455.60

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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.