Home / 66,425,030.40-99,637,545.60-40,782,892.80

Finding the Fourth Proportional to 66,425,030.40, 99,637,545.60 and 40,782,892.80

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Solution

The fourth proportional to 66,425,030.40, 99,637,545.60 and 40,782,892.80 is: 61,174,339.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,425,030.40 : 99,637,545.60 = 40,782,892.80 : x
  2. Step 2: Convert to fraction form
    66,425,030.40/99,637,545.60 = 40,782,892.80/x
  3. Step 3: Cross multiply
    66,425,030.40x = 99,637,545.60 × 40,782,892.80
  4. Step 4: Simplify right side
    66,425,030.40x = 4,063,507,341,059,911
  5. Step 5: Solve for x
    x = 4,063,507,341,059,911/66,425,030.40
  6. Step 6: Final answer
    x = 61,174,339.20

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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.