Home / 388,509,027,221.50-536,106,477,789.35-214,890,429,931.98

Finding the Fourth Proportional to 388,509,027,221.50, 536,106,477,789.35 and 214,890,429,931.98

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Solution

The fourth proportional to 388,509,027,221.50, 536,106,477,789.35 and 214,890,429,931.98 is: 296,528,892,328.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,509,027,221.50 : 536,106,477,789.35 = 214,890,429,931.98 : x
  2. Step 2: Convert to fraction form
    388,509,027,221.50/536,106,477,789.35 = 214,890,429,931.98/x
  3. Step 3: Cross multiply
    388,509,027,221.50x = 536,106,477,789.35 × 214,890,429,931.98
  4. Step 4: Simplify right side
    388,509,027,221.50x = 115,204,151,501,472,904,773,632
  5. Step 5: Solve for x
    x = 115,204,151,501,472,904,773,632/388,509,027,221.50
  6. Step 6: Final answer
    x = 296,528,892,328.14

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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.