Finding the Fourth Proportional to 611,869,878.99, 917,803,671.44 and 191,723,417.07
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Solution
The fourth proportional to 611,869,878.99, 917,803,671.44 and 191,723,417.07 is: 287,584,766.19
Step by Step Solution
- Step 1: Write the proportion equation
611,869,878.99 : 917,803,671.44 = 191,723,417.07 : x - Step 2: Convert to fraction form
611,869,878.99/917,803,671.44 = 191,723,417.07/x - Step 3: Cross multiply
611,869,878.99x = 917,803,671.44 × 191,723,417.07 - Step 4: Simplify right side
611,869,878.99x = 175,964,456,086,909,728 - Step 5: Solve for x
x = 175,964,456,086,909,728/611,869,878.99 - Step 6: Final answer
x = 287,584,766.19
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1.5x scale
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.