Home / 288,459,913.02-398,075,029.11-156,300,805.50

Finding the Fourth Proportional to 288,459,913.02, 398,075,029.11 and 156,300,805.50

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Solution

The fourth proportional to 288,459,913.02, 398,075,029.11 and 156,300,805.50 is: 215,695,300.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,459,913.02 : 398,075,029.11 = 156,300,805.50 : x
  2. Step 2: Convert to fraction form
    288,459,913.02/398,075,029.11 = 156,300,805.50/x
  3. Step 3: Cross multiply
    288,459,913.02x = 398,075,029.11 × 156,300,805.50
  4. Step 4: Simplify right side
    288,459,913.02x = 62,219,447,699,328,952
  5. Step 5: Solve for x
    x = 62,219,447,699,328,952/288,459,913.02
  6. Step 6: Final answer
    x = 215,695,300.77

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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.