Home / 435,801,678.21-653,829,875.55-140,689,873.68

Finding the Fourth Proportional to 435,801,678.21, 653,829,875.55 and 140,689,873.68

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Solution

The fourth proportional to 435,801,678.21, 653,829,875.55 and 140,689,873.68 is: 211,075,925.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,801,678.21 : 653,829,875.55 = 140,689,873.68 : x
  2. Step 2: Convert to fraction form
    435,801,678.21/653,829,875.55 = 140,689,873.68/x
  3. Step 3: Cross multiply
    435,801,678.21x = 653,829,875.55 × 140,689,873.68
  4. Step 4: Simplify right side
    435,801,678.21x = 91,987,242,601,090,240
  5. Step 5: Solve for x
    x = 91,987,242,601,090,240/435,801,678.21
  6. Step 6: Final answer
    x = 211,075,925.59

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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.