Home / 778,946,686.80-1,075,018,539.28-431,266,174.80

Finding the Fourth Proportional to 778,946,686.80, 1,075,018,539.28 and 431,266,174.80

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Solution

The fourth proportional to 778,946,686.80, 1,075,018,539.28 and 431,266,174.80 is: 595,187,245.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,946,686.80 : 1,075,018,539.28 = 431,266,174.80 : x
  2. Step 2: Convert to fraction form
    778,946,686.80/1,075,018,539.28 = 431,266,174.80/x
  3. Step 3: Cross multiply
    778,946,686.80x = 1,075,018,539.28 × 431,266,174.80
  4. Step 4: Simplify right side
    778,946,686.80x = 463,619,133,274,369,152
  5. Step 5: Solve for x
    x = 463,619,133,274,369,152/778,946,686.80
  6. Step 6: Final answer
    x = 595,187,245.97

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1.5x scale

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.