Home / 142,364,990.40-213,547,485.60-51,502,603.20

Finding the Fourth Proportional to 142,364,990.40, 213,547,485.60 and 51,502,603.20

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Solution

The fourth proportional to 142,364,990.40, 213,547,485.60 and 51,502,603.20 is: 77,253,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,364,990.40 : 213,547,485.60 = 51,502,603.20 : x
  2. Step 2: Convert to fraction form
    142,364,990.40/213,547,485.60 = 51,502,603.20/x
  3. Step 3: Cross multiply
    142,364,990.40x = 213,547,485.60 × 51,502,603.20
  4. Step 4: Simplify right side
    142,364,990.40x = 10,998,251,415,214,514
  5. Step 5: Solve for x
    x = 10,998,251,415,214,514/142,364,990.40
  6. Step 6: Final answer
    x = 77,253,904.80

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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.