Home / 139,143,374,003.04-208,699,430,978.88-38,428,559,522.88

Finding the Fourth Proportional to 139,143,374,003.04, 208,699,430,978.88 and 38,428,559,522.88

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Solution

The fourth proportional to 139,143,374,003.04, 208,699,430,978.88 and 38,428,559,522.88 is: 57,638,522,590.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,143,374,003.04 : 208,699,430,978.88 = 38,428,559,522.88 : x
  2. Step 2: Convert to fraction form
    139,143,374,003.04/208,699,430,978.88 = 38,428,559,522.88/x
  3. Step 3: Cross multiply
    139,143,374,003.04x = 208,699,430,978.88 × 38,428,559,522.88
  4. Step 4: Simplify right side
    139,143,374,003.04x = 8,020,018,505,763,075,915,776
  5. Step 5: Solve for x
    x = 8,020,018,505,763,075,915,776/139,143,374,003.04
  6. Step 6: Final answer
    x = 57,638,522,590.29

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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.