Home / 128,496,960,199.19-177,327,411,928.32-70,631,657,721.74

Finding the Fourth Proportional to 128,496,960,199.19, 177,327,411,928.32 and 70,631,657,721.74

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Solution

The fourth proportional to 128,496,960,199.19, 177,327,411,928.32 and 70,631,657,721.74 is: 97,472,570,904.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,496,960,199.19 : 177,327,411,928.32 = 70,631,657,721.74 : x
  2. Step 2: Convert to fraction form
    128,496,960,199.19/177,327,411,928.32 = 70,631,657,721.74/x
  3. Step 3: Cross multiply
    128,496,960,199.19x = 177,327,411,928.32 × 70,631,657,721.74
  4. Step 4: Simplify right side
    128,496,960,199.19x = 12,524,929,064,003,803,545,600
  5. Step 5: Solve for x
    x = 12,524,929,064,003,803,545,600/128,496,960,199.19
  6. Step 6: Final answer
    x = 97,472,570,904.31

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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.