Home / 139,347,518.16-192,288,681.90-77,464,088.40

Finding the Fourth Proportional to 139,347,518.16, 192,288,681.90 and 77,464,088.40

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Solution

The fourth proportional to 139,347,518.16, 192,288,681.90 and 77,464,088.40 is: 106,894,386.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,347,518.16 : 192,288,681.90 = 77,464,088.40 : x
  2. Step 2: Convert to fraction form
    139,347,518.16/192,288,681.90 = 77,464,088.40/x
  3. Step 3: Cross multiply
    139,347,518.16x = 192,288,681.90 × 77,464,088.40
  4. Step 4: Simplify right side
    139,347,518.16x = 14,895,467,453,021,082
  5. Step 5: Solve for x
    x = 14,895,467,453,021,082/139,347,518.16
  6. Step 6: Final answer
    x = 106,894,386.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.