Home / 145,655,138.70-218,482,708.05-77,630,690.70

Finding the Fourth Proportional to 145,655,138.70, 218,482,708.05 and 77,630,690.70

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Solution

The fourth proportional to 145,655,138.70, 218,482,708.05 and 77,630,690.70 is: 116,446,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,655,138.70 : 218,482,708.05 = 77,630,690.70 : x
  2. Step 2: Convert to fraction form
    145,655,138.70/218,482,708.05 = 77,630,690.70/x
  3. Step 3: Cross multiply
    145,655,138.70x = 218,482,708.05 × 77,630,690.70
  4. Step 4: Simplify right side
    145,655,138.70x = 16,960,963,531,927,952
  5. Step 5: Solve for x
    x = 16,960,963,531,927,952/145,655,138.70
  6. Step 6: Final answer
    x = 116,446,036.05

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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.