Finding the Fourth Proportional to 910,655,113.05, 1,365,778,228.82 and 418,896,090.81
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Solution
The fourth proportional to 910,655,113.05, 1,365,778,228.82 and 418,896,090.81 is: 628,250,094.65
Step by Step Solution
- Step 1: Write the proportion equation
910,655,113.05 : 1,365,778,228.82 = 418,896,090.81 : x - Step 2: Convert to fraction form
910,655,113.05/1,365,778,228.82 = 418,896,090.81/x - Step 3: Cross multiply
910,655,113.05x = 1,365,778,228.82 × 418,896,090.81 - Step 4: Simplify right side
910,655,113.05x = 572,119,160,964,009,216 - Step 5: Solve for x
x = 572,119,160,964,009,216/910,655,113.05 - Step 6: Final answer
x = 628,250,094.65
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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.