Home / 1,103,763,434.40-1,655,645,151.60-858,875,421.60

Finding the Fourth Proportional to 1,103,763,434.40, 1,655,645,151.60 and 858,875,421.60

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Solution

The fourth proportional to 1,103,763,434.40, 1,655,645,151.60 and 858,875,421.60 is: 1,288,313,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,103,763,434.40 : 1,655,645,151.60 = 858,875,421.60 : x
  2. Step 2: Convert to fraction form
    1,103,763,434.40/1,655,645,151.60 = 858,875,421.60/x
  3. Step 3: Cross multiply
    1,103,763,434.40x = 1,655,645,151.60 × 858,875,421.60
  4. Step 4: Simplify right side
    1,103,763,434.40x = 1,421,992,927,600,445,952
  5. Step 5: Solve for x
    x = 1,421,992,927,600,445,952/1,103,763,434.40
  6. Step 6: Final answer
    x = 1,288,313,132.40

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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.