Home / 139,050,166.40-208,574,212.80-42,005,686.40

Finding the Fourth Proportional to 139,050,166.40, 208,574,212.80 and 42,005,686.40

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Solution

The fourth proportional to 139,050,166.40, 208,574,212.80 and 42,005,686.40 is: 63,008,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,050,166.40 : 208,574,212.80 = 42,005,686.40 : x
  2. Step 2: Convert to fraction form
    139,050,166.40/208,574,212.80 = 42,005,686.40/x
  3. Step 3: Cross multiply
    139,050,166.40x = 208,574,212.80 × 42,005,686.40
  4. Step 4: Simplify right side
    139,050,166.40x = 8,761,302,974,003,666
  5. Step 5: Solve for x
    x = 8,761,302,974,003,666/139,050,166.40
  6. Step 6: Final answer
    x = 63,008,216.39

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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.