Home / 520,129,801.02-780,075,312.71-310,099,916.48

Finding the Fourth Proportional to 520,129,801.02, 780,075,312.71 and 310,099,916.48

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Solution

The fourth proportional to 520,129,801.02, 780,075,312.71 and 310,099,916.48 is: 465,078,695.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,129,801.02 : 780,075,312.71 = 310,099,916.48 : x
  2. Step 2: Convert to fraction form
    520,129,801.02/780,075,312.71 = 310,099,916.48/x
  3. Step 3: Cross multiply
    520,129,801.02x = 780,075,312.71 × 310,099,916.48
  4. Step 4: Simplify right side
    520,129,801.02x = 241,901,289,319,480,896
  5. Step 5: Solve for x
    x = 241,901,289,319,480,896/520,129,801.02
  6. Step 6: Final answer
    x = 465,078,695.44

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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.