Home / 145,511,123.40-218,266,685.10-136,901,779.20

Finding the Fourth Proportional to 145,511,123.40, 218,266,685.10 and 136,901,779.20

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Solution

The fourth proportional to 145,511,123.40, 218,266,685.10 and 136,901,779.20 is: 205,352,668.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,511,123.40 : 218,266,685.10 = 136,901,779.20 : x
  2. Step 2: Convert to fraction form
    145,511,123.40/218,266,685.10 = 136,901,779.20/x
  3. Step 3: Cross multiply
    145,511,123.40x = 218,266,685.10 × 136,901,779.20
  4. Step 4: Simplify right side
    145,511,123.40x = 29,881,097,530,276,128
  5. Step 5: Solve for x
    x = 29,881,097,530,276,128/145,511,123.40
  6. Step 6: Final answer
    x = 205,352,668.80

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1.5x scale

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.