Home / 711,184,046,285.70-981,408,590,590.86-402,528,778,393.94

Finding the Fourth Proportional to 711,184,046,285.70, 981,408,590,590.86 and 402,528,778,393.94

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Solution

The fourth proportional to 711,184,046,285.70, 981,408,590,590.86 and 402,528,778,393.94 is: 555,475,341,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,184,046,285.70 : 981,408,590,590.86 = 402,528,778,393.94 : x
  2. Step 2: Convert to fraction form
    711,184,046,285.70/981,408,590,590.86 = 402,528,778,393.94/x
  3. Step 3: Cross multiply
    711,184,046,285.70x = 981,408,590,590.86 × 402,528,778,393.94
  4. Step 4: Simplify right side
    711,184,046,285.70x = 395,045,201,075,857,287,806,976
  5. Step 5: Solve for x
    x = 395,045,201,075,857,287,806,976/711,184,046,285.70
  6. Step 6: Final answer
    x = 555,475,341,634.93

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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.