Home / 78,566,407,706.56-108,421,686,129.18-42,437,439,944.32

Finding the Fourth Proportional to 78,566,407,706.56, 108,421,686,129.18 and 42,437,439,944.32

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Solution

The fourth proportional to 78,566,407,706.56, 108,421,686,129.18 and 42,437,439,944.32 is: 58,563,690,616.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,566,407,706.56 : 108,421,686,129.18 = 42,437,439,944.32 : x
  2. Step 2: Convert to fraction form
    78,566,407,706.56/108,421,686,129.18 = 42,437,439,944.32/x
  3. Step 3: Cross multiply
    78,566,407,706.56x = 108,421,686,129.18 × 42,437,439,944.32
  4. Step 4: Simplify right side
    78,566,407,706.56x = 4,601,138,793,768,988,704,768
  5. Step 5: Solve for x
    x = 4,601,138,793,768,988,704,768/78,566,407,706.56
  6. Step 6: Final answer
    x = 58,563,690,616.40

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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.