Finding the Fourth Proportional to 722,390,389.08, 996,881,781.64 and 425,051,889.82
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Solution
The fourth proportional to 722,390,389.08, 996,881,781.64 and 425,051,889.82 is: 586,561,631.52
Step by Step Solution
- Step 1: Write the proportion equation
722,390,389.08 : 996,881,781.64 = 425,051,889.82 : x - Step 2: Convert to fraction form
722,390,389.08/996,881,781.64 = 425,051,889.82/x - Step 3: Cross multiply
722,390,389.08x = 996,881,781.64 × 425,051,889.82 - Step 4: Simplify right side
722,390,389.08x = 423,726,485,213,210,560 - Step 5: Solve for x
x = 423,726,485,213,210,560/722,390,389.08 - Step 6: Final answer
x = 586,561,631.52
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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.